El control TreeView o Vista de Árbol se usa para mostrar en forma jerárquica elementos llamados nodos (Nodes), los cuales pueden tener textos e imágenes, éstas últimas extraidas de una lista de imágenes.
- Propiedades
Nombre | Descripción | |
---|---|---|
AccessibilityObject | Gets the AccessibleObject assigned to the control. (Inherited from Control.) | |
AccessibleDefaultActionDescription | Gets or sets the default action description of the control for use by accessibility client applications. (Inherited from Control.) | |
AccessibleDescription | Gets or sets the description of the control used by accessibility client applications. (Inherited from Control.) | |
AccessibleName | Gets or sets the name of the control used by accessibility client applications. (Inherited from Control.) | |
AccessibleRole | Gets or sets the accessible role of the control (Inherited from Control.) | |
AllowDrop | Gets or sets a value indicating whether the control can accept data that the user drags onto it. (Inherited from Control.) | |
Anchor | Gets or sets the edges of the container to which a control is bound and determines how a control is resized with its parent. (Inherited from Control.) | |
AutoScrollOffset | Gets or sets where this control is scrolled to in ScrollControlIntoView. (Inherited from Control.) | |
AutoSize | Infrastructure. This property is not relevant for this class. (Inherited from Control.) | |
BackColor | Gets or sets the background color for the control. (Overrides Control.BackColor.) | |
BackgroundImage | Infrastructure. Gets or set the background image for the TreeView control. (Overrides Control.BackgroundImage.) | |
BackgroundImageLayout | Infrastructure. Gets or sets the layout of the background image for the TreeView control. (Overrides Control.BackgroundImageLayout.) | |
BindingContext | Gets or sets the BindingContext for the control. (Inherited from Control.) | |
BorderStyle | Gets or sets the border style of the tree view control. | |
Bottom | Gets the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area. (Inherited from Control.) | |
Bounds | Gets or sets the size and location of the control including its nonclient elements, in pixels, relative to the parent control. (Inherited from Control.) | |
CanEnableIme | Gets a value indicating whether the ImeMode property can be set to an active value, to enable IME support. (Inherited from Control.) | |
CanFocus | Gets a value indicating whether the control can receive focus. (Inherited from Control.) | |
CanRaiseEvents | Determines if events can be raised on the control. (Inherited from Control.) | |
CanSelect | Gets a value indicating whether the control can be selected. (Inherited from Control.) | |
Capture | Gets or sets a value indicating whether the control has captured the mouse. (Inherited from Control.) | |
CausesValidation | Gets or sets a value indicating whether the control causes validation to be performed on any controls that require validation when it receives focus. (Inherited from Control.) | |
CheckBoxes | Gets or sets a value indicating whether check boxes are displayed next to the tree nodes in the tree view control. | |
ClientRectangle | Gets the rectangle that represents the client area of the control. (Inherited from Control.) | |
ClientSize | Gets or sets the height and width of the client area of the control. (Inherited from Control.) | |
CompanyName | Gets the name of the company or creator of the application containing the control. (Inherited from Control.) | |
Container | Gets the IContainer that contains the Component. (Inherited from Component.) | |
ContainsFocus | Gets a value indicating whether the control, or one of its child controls, currently has the input focus. (Inherited from Control.) | |
ContextMenu | Gets or sets the shortcut menu associated with the control. (Inherited from Control.) | |
ContextMenuStrip | Gets or sets the ContextMenuStrip associated with this control. (Inherited from Control.) | |
Controls | Gets the collection of controls contained within the control. (Inherited from Control.) | |
Created | Gets a value indicating whether the control has been created. (Inherited from Control.) | |
CreateParams | Infrastructure. Overrides CreateParams. (Overrides Control.CreateParams.) | |
Cursor | Gets or sets the cursor that is displayed when the mouse pointer is over the control. (Inherited from Control.) | |
DataBindings | Gets the data bindings for the control. (Inherited from Control.) | |
DefaultCursor | Gets or sets the default cursor for the control. (Inherited from Control.) | |
DefaultImeMode | Gets the default Input Method Editor (IME) mode supported by the control. (Inherited from Control.) | |
DefaultMargin | Gets the space, in pixels, that is specified by default between controls. (Inherited from Control.) | |
DefaultMaximumSize | Gets the length and height, in pixels, that is specified as the default maximum size of a control. (Inherited from Control.) | |
DefaultMinimumSize | Gets the length and height, in pixels, that is specified as the default minimum size of a control. (Inherited from Control.) | |
DefaultPadding | Gets the internal spacing, in pixels, of the contents of a control. (Inherited from Control.) | |
DefaultSize | Gets the default size of the control. (Overrides Control.DefaultSize.) | |
DesignMode | Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component.) | |
DisplayRectangle | Gets the rectangle that represents the display area of the control. (Inherited from Control.) | |
Disposing | Gets a value indicating whether the base Control class is in the process of disposing. (Inherited from Control.) | |
Dock | Gets or sets which control borders are docked to its parent control and determines how a control is resized with its parent. (Inherited from Control.) | |
DoubleBuffered | Gets or sets a value indicating whether the control should redraw its surface using a secondary buffer. The DoubleBuffered property does not affect the TreeView control. (Overrides Control.DoubleBuffered.) | |
DrawMode | Gets or sets the mode in which the control is drawn. | |
Enabled | Gets or sets a value indicating whether the control can respond to user interaction. (Inherited from Control.) | |
Events | Gets the list of event handlers that are attached to this Component. (Inherited from Component.) | |
Focused | Gets a value indicating whether the control has input focus. (Inherited from Control.) | |
Font | Gets or sets the font of the text displayed by the control. (Inherited from Control.) | |
FontHeight | Gets or sets the height of the font of the control. (Inherited from Control.) | |
ForeColor | The current foreground color for this control, which is the color the control uses to draw its text. (Overrides Control.ForeColor.) | |
FullRowSelect | Gets or sets a value indicating whether the selection highlight spans the width of the tree view control. | |
Handle | Gets the window handle that the control is bound to. (Inherited from Control.) | |
HasChildren | Gets a value indicating whether the control contains one or more child controls. (Inherited from Control.) | |
Height | Gets or sets the height of the control. (Inherited from Control.) | |
HideSelection | Gets or sets a value indicating whether the selected tree node remains highlighted even when the tree view has lost the focus. | |
HotTracking | Gets or sets a value indicating whether a tree node label takes on the appearance of a hyperlink as the mouse pointer passes over it. | |
ImageIndex | Gets or sets the image-list index value of the default image that is displayed by the tree nodes. | |
ImageKey | Gets or sets the key of the default image for each node in the TreeView control when it is in an unselected state. | |
ImageList | Gets or sets the ImageList that contains the Image objects that are used by the tree nodes. | |
ImeMode | Gets or sets the Input Method Editor (IME) mode of the control. (Inherited from Control.) | |
ImeModeBase | Gets or sets the IME mode of a control. (Inherited from Control.) | |
Indent | Gets or sets the distance to indent each child tree node level. | |
InvokeRequired | Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on. (Inherited from Control.) | |
IsAccessible | Gets or sets a value indicating whether the control is visible to accessibility applications. (Inherited from Control.) | |
IsDisposed | Gets a value indicating whether the control has been disposed of. (Inherited from Control.) | |
IsHandleCreated | Gets a value indicating whether the control has a handle associated with it. (Inherited from Control.) | |
IsMirrored | Gets a value indicating whether the control is mirrored. (Inherited from Control.) | |
ItemHeight | Gets or sets the height of each tree node in the tree view control. | |
LabelEdit | Gets or sets a value indicating whether the label text of the tree nodes can be edited. | |
LayoutEngine | Gets a cached instance of the control's layout engine. (Inherited from Control.) | |
Left | Gets or sets the distance, in pixels, between the left edge of the control and the left edge of its container's client area. (Inherited from Control.) | |
LineColor | Gets or sets the color of the lines connecting the nodes of the TreeView control. | |
Location | Gets or sets the coordinates of the upper-left corner of the control relative to the upper-left corner of its container. (Inherited from Control.) | |
Margin | Gets or sets the space between controls. (Inherited from Control.) | |
MaximumSize | Gets or sets the size that is the upper limit that GetPreferredSize can specify. (Inherited from Control.) | |
MinimumSize | Gets or sets the size that is the lower limit that GetPreferredSize can specify. (Inherited from Control.) | |
Name | Gets or sets the name of the control. (Inherited from Control.) | |
Nodes | Gets the collection of tree nodes that are assigned to the tree view control. | |
Padding | Infrastructure. Gets or sets the spacing between the TreeView control's contents and its edges. | |
Parent | Gets or sets the parent container of the control. (Inherited from Control.) | |
PathSeparator | Gets or sets the delimiter string that the tree node path uses. | |
PreferredSize | Gets the size of a rectangular area into which the control can fit. (Inherited from Control.) | |
ProductName | Gets the product name of the assembly containing the control. (Inherited from Control.) | |
ProductVersion | Gets the version of the assembly containing the control. (Inherited from Control.) | |
RecreatingHandle | Gets a value indicating whether the control is currently re-creating its handle. (Inherited from Control.) | |
Region | Gets or sets the window region associated with the control. (Inherited from Control.) | |
RenderRightToLeft | Obsolete. This property is now obsolete. (Inherited from Control.) | |
ResizeRedraw | Gets or sets a value indicating whether the control redraws itself when resized. (Inherited from Control.) | |
Right | Gets the distance, in pixels, between the right edge of the control and the left edge of its container's client area. (Inherited from Control.) | |
RightToLeft | Gets or sets a value indicating whether control's elements are aligned to support locales using right-to-left fonts. (Inherited from Control.) | |
RightToLeftLayout | Gets or sets a value that indicates whether the TreeView should be laid out from right-to-left. | |
ScaleChildren | Gets a value that determines the scaling of child controls. (Inherited from Control.) | |
Scrollable | Gets or sets a value indicating whether the tree view control displays scroll bars when they are needed. | |
SelectedImageIndex | Gets or sets the image list index value of the image that is displayed when a tree node is selected. | |
SelectedImageKey | Gets or sets the key of the default image shown when a TreeNode is in a selected state. | |
SelectedNode | Gets or sets the tree node that is currently selected in the tree view control. | |
ShowFocusCues | Gets a value indicating whether the control should display focus rectangles. (Inherited from Control.) | |
ShowKeyboardCues | Gets a value indicating whether the user interface is in the appropriate state to show or hide keyboard accelerators. (Inherited from Control.) | |
ShowLines | Gets or sets a value indicating whether lines are drawn between tree nodes in the tree view control. | |
ShowNodeToolTips | Gets or sets a value indicating ToolTips are shown when the mouse pointer hovers over a TreeNode. | |
ShowPlusMinus | Gets or sets a value indicating whether plus-sign (+) and minus-sign (-) buttons are displayed next to tree nodes that contain child tree nodes. | |
ShowRootLines | Gets or sets a value indicating whether lines are drawn between the tree nodes that are at the root of the tree view. | |
Site | Gets or sets the site of the control. (Inherited from Control.) | |
Size | Gets or sets the height and width of the control. (Inherited from Control.) | |
Sorted | Gets or sets a value indicating whether the tree nodes in the tree view are sorted. | |
StateImageList | Gets or sets the image list that is used to indicate the state of the TreeView and its nodes. | |
TabIndex | Gets or sets the tab order of the control within its container. (Inherited from Control.) | |
TabStop | Gets or sets a value indicating whether the user can give the focus to this control using the TAB key. (Inherited from Control.) | |
Tag | Gets or sets the object that contains data about the control. (Inherited from Control.) | |
Text | Infrastructure. Gets or sets the text of the TreeView. (Overrides Control.Text.) | |
Top | Gets or sets the distance, in pixels, between the top edge of the control and the top edge of its container's client area. (Inherited from Control.) | |
TopLevelControl | Gets the parent control that is not parented by another Windows Forms control. Typically, this is the outermost Form that the control is contained in. (Inherited from Control.) | |
TopNode | Gets or sets the first fully-visible tree node in the tree view control. | |
TreeViewNodeSorter | Gets or sets the implementation of IComparer to perform a custom sort of the TreeView nodes. | |
UseWaitCursor | Gets or sets a value indicating whether to use the wait cursor for the current control and all child controls. (Inherited from Control.) | |
Visible | Gets or sets a value indicating whether the control and all its child controls are displayed. (Inherited from Control.) | |
VisibleCount | Gets the number of tree nodes that can be fully visible in the tree view control. | |
Width | Gets or sets the width of the control. (Inherited from Control.) | |
WindowTarget | Infrastructure. This property is not relevant for this class. (Inherited from Control.) |
- Métodos
Nombre | Descripción | |
---|---|---|
AccessibilityNotifyClients(AccessibleEvents, Int32) | Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control. (Inherited from Control.) | |
AccessibilityNotifyClients(AccessibleEvents, Int32, Int32) | Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control . (Inherited from Control.) | |
BeginInvoke(Delegate) | Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on. (Inherited from Control.) | |
BeginInvoke(Delegate, Object[]) | Executes the specified delegate asynchronously with the specified arguments, on the thread that the control's underlying handle was created on. (Inherited from Control.) | |
BeginUpdate | Disables any redrawing of the tree view. | |
BringToFront | Brings the control to the front of the z-order. (Inherited from Control.) | |
CollapseAll | Collapses all the tree nodes. | |
Contains | Retrieves a value indicating whether the specified control is a child of the control. (Inherited from Control.) | |
CreateAccessibilityInstance | Creates a new accessibility object for the control. (Inherited from Control.) | |
CreateControl | Forces the creation of the visible control, including the creation of the handle and any visible child controls. (Inherited from Control.) | |
CreateControlsInstance | Creates a new instance of the control collection for the control. (Inherited from Control.) | |
CreateGraphics | Creates the Graphics for the control. (Inherited from Control.) | |
CreateHandle | Infrastructure. Creates a handle for the control. (Overrides Control.CreateHandle().) | |
CreateObjRef | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.) | |
DefWndProc | Sends the specified message to the default window procedure. (Inherited from Control.) | |
DestroyHandle | Destroys the handle associated with the control. (Inherited from Control.) | |
Dispose() | Releases all resources used by the Component. (Inherited from Component.) | |
Dispose(Boolean) | Releases the unmanaged resources used by the TreeView and optionally releases the managed resources. (Overrides Control.Dispose(Boolean).) | |
DoDragDrop | Begins a drag-and-drop operation. (Inherited from Control.) | |
DrawToBitmap | Supports rendering to the specified bitmap. (Inherited from Control.) | |
EndInvoke | Retrieves the return value of the asynchronous operation represented by the IAsyncResult passed. (Inherited from Control.) | |
EndUpdate | Enables the redrawing of the tree view. | |
Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) | |
ExpandAll | Expands all the tree nodes. | |
Finalize | Releases unmanaged resources and performs other cleanup operations before the Component is reclaimed by garbage collection. (Inherited from Component.) | |
FindForm | Retrieves the form that the control is on. (Inherited from Control.) | |
Focus | Sets input focus to the control. (Inherited from Control.) | |
GetAccessibilityObjectById | Retrieves the specified AccessibleObject. (Inherited from Control.) | |
GetAutoSizeMode | Retrieves a value indicating how a control will behave when its AutoSize property is enabled. (Inherited from Control.) | |
GetChildAtPoint(Point) | Retrieves the child control that is located at the specified coordinates. (Inherited from Control.) | |
GetChildAtPoint(Point, GetChildAtPointSkip) | Retrieves the child control that is located at the specified coordinates, specifying whether to ignore child controls of a certain type. (Inherited from Control.) | |
GetContainerControl | Returns the next ContainerControl up the control's chain of parent controls. (Inherited from Control.) | |
GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) | |
GetItemRenderStyles | Infrastructure. Returns an OwnerDrawPropertyBag for the specified TreeNode. | |
GetLifetimeService | Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.) | |
GetNextControl | Retrieves the next control forward or back in the tab order of child controls. (Inherited from Control.) | |
GetNodeAt(Point) | Retrieves the tree node that is at the specified point. | |
GetNodeAt(Int32, Int32) | Retrieves the tree node at the point with the specified coordinates. | |
GetNodeCount | Retrieves the number of tree nodes, optionally including those in all subtrees, assigned to the tree view control. | |
GetPreferredSize | Retrieves the size of a rectangular area into which a control can be fitted. (Inherited from Control.) | |
GetScaledBounds | Retrieves the bounds within which the control is scaled. (Inherited from Control.) | |
GetService | Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component.) | |
GetStyle | Retrieves the value of the specified control style bit for the control. (Inherited from Control.) | |
GetTopLevel | Determines if the control is a top-level control. (Inherited from Control.) | |
GetType | Gets the Type of the current instance. (Inherited from Object.) | |
Hide | Conceals the control from the user. (Inherited from Control.) | |
HitTest(Point) | Provides node information, given a point. | |
HitTest(Int32, Int32) | Provides node information, given x- and y-coordinates. | |
InitializeLifetimeService | Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.) | |
InitLayout | Called after the control has been added to another container. (Inherited from Control.) | |
Invalidate() | Invalidates the entire surface of the control and causes the control to be redrawn. (Inherited from Control.) | |
Invalidate(Boolean) | Invalidates a specific region of the control and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. (Inherited from Control.) | |
Invalidate(Rectangle) | Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. (Inherited from Control.) | |
Invalidate(Region) | Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. (Inherited from Control.) | |
Invalidate(Rectangle, Boolean) | Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. (Inherited from Control.) | |
Invalidate(Region, Boolean) | Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. (Inherited from Control.) | |
Invoke(Delegate) | Executes the specified delegate on the thread that owns the control's underlying window handle. (Inherited from Control.) | |
Invoke(Delegate, Object[]) | Executes the specified delegate, on the thread that owns the control's underlying window handle, with the specified list of arguments. (Inherited from Control.) | |
InvokeGotFocus | Raises the GotFocus event for the specified control. (Inherited from Control.) | |
InvokeLostFocus | Raises the LostFocus event for the specified control. (Inherited from Control.) | |
InvokeOnClick | Raises the Click event for the specified control. (Inherited from Control.) | |
InvokePaint | Raises the Paint event for the specified control. (Inherited from Control.) | |
InvokePaintBackground | Raises the PaintBackground event for the specified control. (Inherited from Control.) | |
IsInputChar | Determines if a character is an input character that the control recognizes. (Inherited from Control.) | |
IsInputKey | Infrastructure. Determines whether the specified key is a regular input key or a special key that requires preprocessing. (Overrides Control.IsInputKey(Keys).) | |
MemberwiseClone() | Creates a shallow copy of the current Object. (Inherited from Object.) | |
MemberwiseClone(Boolean) | Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.) | |
NotifyInvalidate | Infrastructure. Raises the Invalidated event with a specified region of the control to invalidate. (Inherited from Control.) | |
OnAfterCheck | Raises the AfterCheck event. | |
OnAfterCollapse | Raises the AfterCollapse event. | |
OnAfterExpand | Raises the AfterExpand event. | |
OnAfterLabelEdit | Raises the AfterLabelEdit event. | |
OnAfterSelect | Raises the AfterSelect event. | |
OnAutoSizeChanged | Raises the AutoSizeChanged event. (Inherited from Control.) | |
OnBackColorChanged | Raises the BackColorChanged event. (Inherited from Control.) | |
OnBackgroundImageChanged | Raises the BackgroundImageChanged event. (Inherited from Control.) | |
OnBackgroundImageLayoutChanged | Raises the BackgroundImageLayoutChanged event. (Inherited from Control.) | |
OnBeforeCheck | Raises the BeforeCheck event. | |
OnBeforeCollapse | Raises the BeforeCollapse event. | |
OnBeforeExpand | Raises the BeforeExpand event. | |
OnBeforeLabelEdit | Raises the BeforeLabelEdit event. | |
OnBeforeSelect | Raises the BeforeSelect event. | |
OnBindingContextChanged | Raises the BindingContextChanged event. (Inherited from Control.) | |
OnCausesValidationChanged | Raises the CausesValidationChanged event. (Inherited from Control.) | |
OnChangeUICues | Raises the ChangeUICues event. (Inherited from Control.) | |
OnClick | Raises the Click event. (Inherited from Control.) | |
OnClientSizeChanged | Raises the ClientSizeChanged event. (Inherited from Control.) | |
OnContextMenuChanged | Raises the ContextMenuChanged event. (Inherited from Control.) | |
OnContextMenuStripChanged | Raises the ContextMenuStripChanged event. (Inherited from Control.) | |
OnControlAdded | Raises the ControlAdded event. (Inherited from Control.) | |
OnControlRemoved | Raises the ControlRemoved event. (Inherited from Control.) | |
OnCreateControl | Raises the CreateControl method. (Inherited from Control.) | |
OnCursorChanged | Raises the CursorChanged event. (Inherited from Control.) | |
OnDockChanged | Raises the DockChanged event. (Inherited from Control.) | |
OnDoubleClick | Raises the DoubleClick event. (Inherited from Control.) | |
OnDragDrop | Raises the DragDrop event. (Inherited from Control.) | |
OnDragEnter | Raises the DragEnter event. (Inherited from Control.) | |
OnDragLeave | Raises the DragLeave event. (Inherited from Control.) | |
OnDragOver | Raises the DragOver event. (Inherited from Control.) | |
OnDrawNode | Raises the DrawNode event. | |
OnEnabledChanged | Raises the EnabledChanged event. (Inherited from Control.) | |
OnEnter | Raises the Enter event. (Inherited from Control.) | |
OnFontChanged | Raises the FontChanged event. (Inherited from Control.) | |
OnForeColorChanged | Raises the ForeColorChanged event. (Inherited from Control.) | |
OnGiveFeedback | Raises the GiveFeedback event. (Inherited from Control.) | |
OnGotFocus | Raises the GotFocus event. (Inherited from Control.) | |
OnHandleCreated | Overrides OnHandleCreated. (Overrides Control.OnHandleCreated(EventArgs).) | |
OnHandleDestroyed | Overrides OnHandleDestroyed. (Overrides Control.OnHandleDestroyed(EventArgs).) | |
OnHelpRequested | Raises the HelpRequested event. (Inherited from Control.) | |
OnImeModeChanged | Raises the ImeModeChanged event. (Inherited from Control.) | |
OnInvalidated | Raises the Invalidated event. (Inherited from Control.) | |
OnItemDrag | Raises the ItemDrag event. | |
OnKeyDown | Infrastructure. Raises the KeyDown event. (Overrides Control.OnKeyDown(KeyEventArgs).) | |
OnKeyPress | Infrastructure. Raises the KeyPress event. (Overrides Control.OnKeyPress(KeyPressEventArgs).) | |
OnKeyUp | Overrides OnKeyUp. (Overrides Control.OnKeyUp(KeyEventArgs).) | |
OnLayout | Raises the Layout event. (Inherited from Control.) | |
OnLeave | Raises the Leave event. (Inherited from Control.) | |
OnLocationChanged | Raises the LocationChanged event. (Inherited from Control.) | |
OnLostFocus | Raises the LostFocus event. (Inherited from Control.) | |
OnMarginChanged | Raises the MarginChanged event. (Inherited from Control.) | |
OnMouseCaptureChanged | Raises the MouseCaptureChanged event. (Inherited from Control.) | |
OnMouseClick | Raises the MouseClick event. (Inherited from Control.) | |
OnMouseDoubleClick | Raises the MouseDoubleClick event. (Inherited from Control.) | |
OnMouseDown | Raises the MouseDown event. (Inherited from Control.) | |
OnMouseEnter | Raises the MouseEnter event. (Inherited from Control.) | |
OnMouseHover | Raises the MouseHover event. (Overrides Control.OnMouseHover(EventArgs).) | |
OnMouseLeave | Raises the MouseLeave event. (Overrides Control.OnMouseLeave(EventArgs).) | |
OnMouseMove | Raises the MouseMove event. (Inherited from Control.) | |
OnMouseUp | Raises the MouseUp event. (Inherited from Control.) | |
OnMouseWheel | Raises the MouseWheel event. (Inherited from Control.) | |
OnMove | Raises the Move event. (Inherited from Control.) | |
OnNodeMouseClick | Raises the NodeMouseClick event. | |
OnNodeMouseDoubleClick | Raises the NodeMouseDoubleClick event. | |
OnNodeMouseHover | Raises the NodeMouseHover event. | |
OnNotifyMessage | Notifies the control of Windows messages. (Inherited from Control.) | |
OnPaddingChanged | Raises the PaddingChanged event. (Inherited from Control.) | |
OnPaint | Raises the Paint event. (Inherited from Control.) | |
OnPaintBackground | Paints the background of the control. (Inherited from Control.) | |
OnParentBackColorChanged | Raises the BackColorChanged event when the BackColor property value of the control's container changes. (Inherited from Control.) | |
OnParentBackgroundImageChanged | Raises the BackgroundImageChanged event when the BackgroundImage property value of the control's container changes. (Inherited from Control.) | |
OnParentBindingContextChanged | Raises the BindingContextChanged event when the BindingContext property value of the control's container changes. (Inherited from Control.) | |
OnParentChanged | Raises the ParentChanged event. (Inherited from Control.) | |
OnParentCursorChanged | Raises the CursorChanged event. (Inherited from Control.) | |
OnParentEnabledChanged | Raises the EnabledChanged event when the Enabled property value of the control's container changes. (Inherited from Control.) | |
OnParentFontChanged | Raises the FontChanged event when the Font property value of the control's container changes. (Inherited from Control.) | |
OnParentForeColorChanged | Raises the ForeColorChanged event when the ForeColor property value of the control's container changes. (Inherited from Control.) | |
OnParentRightToLeftChanged | Raises the RightToLeftChanged event when the RightToLeft property value of the control's container changes. (Inherited from Control.) | |
OnParentVisibleChanged | Raises the VisibleChanged event when the Visible property value of the control's container changes. (Inherited from Control.) | |
OnPreviewKeyDown | Raises the PreviewKeyDown event. (Inherited from Control.) | |
OnPrint | Raises the Paint event. (Inherited from Control.) | |
OnQueryContinueDrag | Raises the QueryContinueDrag event. (Inherited from Control.) | |
OnRegionChanged | Raises the RegionChanged event. (Inherited from Control.) | |
OnResize | Raises the Resize event. (Inherited from Control.) | |
OnRightToLeftChanged | Raises the RightToLeftChanged event. (Inherited from Control.) | |
OnRightToLeftLayoutChanged | Raises the RightToLeftLayoutChanged event. | |
OnSizeChanged | Raises the SizeChanged event. (Inherited from Control.) | |
OnStyleChanged | Raises the StyleChanged event. (Inherited from Control.) | |
OnSystemColorsChanged | Raises the SystemColorsChanged event. (Inherited from Control.) | |
OnTabIndexChanged | Raises the TabIndexChanged event. (Inherited from Control.) | |
OnTabStopChanged | Raises the TabStopChanged event. (Inherited from Control.) | |
OnTextChanged | Raises the TextChanged event. (Inherited from Control.) | |
OnValidated | Raises the Validated event. (Inherited from Control.) | |
OnValidating | Raises the Validating event. (Inherited from Control.) | |
OnVisibleChanged | Raises the VisibleChanged event. (Inherited from Control.) | |
PerformLayout() | Forces the control to apply layout logic to all its child controls. (Inherited from Control.) | |
PerformLayout(Control, String) | Forces the control to apply layout logic to all its child controls. (Inherited from Control.) | |
PointToClient | Computes the location of the specified screen point into client coordinates. (Inherited from Control.) | |
PointToScreen | Computes the location of the specified client point into screen coordinates. (Inherited from Control.) | |
PreProcessControlMessage | Preprocesses keyboard or input messages within the message loop before they are dispatched. (Inherited from Control.) | |
PreProcessMessage | Preprocesses keyboard or input messages within the message loop before they are dispatched. (Inherited from Control.) | |
ProcessCmdKey | Processes a command key. (Inherited from Control.) | |
ProcessDialogChar | Processes a dialog character. (Inherited from Control.) | |
ProcessDialogKey | Processes a dialog key. (Inherited from Control.) | |
ProcessKeyEventArgs | Processes a key message and generates the appropriate control events. (Inherited from Control.) | |
ProcessKeyMessage | Processes a keyboard message. (Inherited from Control.) | |
ProcessKeyPreview | Previews a keyboard message. (Inherited from Control.) | |
ProcessMnemonic | Processes a mnemonic character. (Inherited from Control.) | |
RaiseDragEvent | Infrastructure. Raises the appropriate drag event. (Inherited from Control.) | |
RaiseKeyEvent | Infrastructure. Raises the appropriate key event. (Inherited from Control.) | |
RaiseMouseEvent | Infrastructure. Raises the appropriate mouse event. (Inherited from Control.) | |
RaisePaintEvent | Infrastructure. Raises the appropriate paint event. (Inherited from Control.) | |
RecreateHandle | Forces the re-creation of the handle for the control. (Inherited from Control.) | |
RectangleToClient | Computes the size and location of the specified screen rectangle in client coordinates. (Inherited from Control.) | |
RectangleToScreen | Computes the size and location of the specified client rectangle in screen coordinates. (Inherited from Control.) | |
Refresh | Forces the control to invalidate its client area and immediately redraw itself and any child controls. (Inherited from Control.) | |
ResetBackColor | Resets the BackColor property to its default value. (Inherited from Control.) | |
ResetBindings | Causes a control bound to the BindingSource to reread all the items in the list and refresh their displayed values. (Inherited from Control.) | |
ResetCursor | Resets the Cursor property to its default value. (Inherited from Control.) | |
ResetFont | Resets the Font property to its default value. (Inherited from Control.) | |
ResetForeColor | Resets the ForeColor property to its default value. (Inherited from Control.) | |
ResetImeMode | Resets the ImeMode property to its default value. (Inherited from Control.) | |
ResetMouseEventArgs | Infrastructure. Resets the control to handle the MouseLeave event. (Inherited from Control.) | |
ResetRightToLeft | Resets the RightToLeft property to its default value. (Inherited from Control.) | |
ResetText | Resets the Text property to its default value. (Inherited from Control.) | |
ResumeLayout() | Resumes usual layout logic. (Inherited from Control.) | |
ResumeLayout(Boolean) | Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests. (Inherited from Control.) | |
RtlTranslateAlignment(ContentAlignment) | Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text. (Inherited from Control.) | |
RtlTranslateAlignment(HorizontalAlignment) | Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text. (Inherited from Control.) | |
RtlTranslateAlignment(LeftRightAlignment) | Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text. (Inherited from Control.) | |
RtlTranslateContent | Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text. (Inherited from Control.) | |
RtlTranslateHorizontal | Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text. (Inherited from Control.) | |
RtlTranslateLeftRight | Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text. (Inherited from Control.) | |
Scale(Single) | Obsolete. Scales the control and any child controls. (Inherited from Control.) | |
Scale(SizeF) | Scales the control and all child controls by the specified scaling factor. (Inherited from Control.) | |
Scale(Single, Single) | Obsolete. Scales the entire control and any child controls. (Inherited from Control.) | |
ScaleControl | Scales a control's location, size, padding and margin. (Inherited from Control.) | |
ScaleCore | Infrastructure. This method is not relevant for this class. (Inherited from Control.) | |
Select() | Activates the control. (Inherited from Control.) | |
Select(Boolean, Boolean) | Activates a child control. Optionally specifies the direction in the tab order to select the control from. (Inherited from Control.) | |
SelectNextControl | Activates the next control. (Inherited from Control.) | |
SendToBack | Sends the control to the back of the z-order. (Inherited from Control.) | |
SetAutoSizeMode | Sets a value indicating how a control will behave when its AutoSize property is enabled. (Inherited from Control.) | |
SetBounds(Int32, Int32, Int32, Int32) | Sets the bounds of the control to the specified location and size. (Inherited from Control.) | |
SetBounds(Int32, Int32, Int32, Int32, BoundsSpecified) | Sets the specified bounds of the control to the specified location and size. (Inherited from Control.) | |
SetBoundsCore | Performs the work of setting the specified bounds of this control. (Inherited from Control.) | |
SetClientSizeCore | Sets the size of the client area of the control. (Inherited from Control.) | |
SetStyle | Sets a specified ControlStyles flag to either true or false. (Inherited from Control.) | |
SetTopLevel | Sets the control as the top-level control. (Inherited from Control.) | |
SetVisibleCore | Sets the control to the specified visible state. (Inherited from Control.) | |
Show | Displays the control to the user. (Inherited from Control.) | |
SizeFromClientSize | Determines the size of the entire control from the height and width of its client area. (Inherited from Control.) | |
Sort | Sorts the items in TreeView control. | |
SuspendLayout | Temporarily suspends the layout logic for the control. (Inherited from Control.) | |
ToString | Infrastructure. Overrides ToString. (Overrides Component.ToString().) | |
Update | Causes the control to redraw the invalidated regions within its client area. (Inherited from Control.) | |
UpdateBounds() | Updates the bounds of the control with the current size and location. (Inherited from Control.) | |
UpdateBounds(Int32, Int32, Int32, Int32) | Updates the bounds of the control with the specified size and location. (Inherited from Control.) | |
UpdateBounds(Int32, Int32, Int32, Int32, Int32, Int32) | Updates the bounds of the control with the specified size, location, and client size. (Inherited from Control.) | |
UpdateStyles | Forces the assigned styles to be reapplied to the control. (Inherited from Control.) | |
UpdateZOrder | Updates the control in its parent's z-order. (Inherited from Control.) | |
WndProc | Overrides WndProc. (Overrides Control.WndProc(Message).) |
- Eventos
Nombre | Descripción | |
---|---|---|
AfterCheck | Occurs after the tree node check box is checked. | |
AfterCollapse | Occurs after the tree node is collapsed. | |
AfterExpand | Occurs after the tree node is expanded. | |
AfterLabelEdit | Occurs after the tree node label text is edited. | |
AfterSelect | Occurs after the tree node is selected. | |
AutoSizeChanged | Infrastructure. This event is not relevant for this class. (Inherited from Control.) | |
BackColorChanged | Occurs when the value of the BackColor property changes. (Inherited from Control.) | |
BackgroundImageChanged | Infrastructure. Occurs when the BackgroundImage property changes. | |
BackgroundImageLayoutChanged | Infrastructure. Occurs when the BackgroundImageLayout property changes. | |
BeforeCheck | Occurs before the tree node check box is checked. | |
BeforeCollapse | Occurs before the tree node is collapsed. | |
BeforeExpand | Occurs before the tree node is expanded. | |
BeforeLabelEdit | Occurs before the tree node label text is edited. | |
BeforeSelect | Occurs before the tree node is selected. | |
BindingContextChanged | Occurs when the value of the BindingContext property changes. (Inherited from Control.) | |
CausesValidationChanged | Occurs when the value of the CausesValidation property changes. (Inherited from Control.) | |
ChangeUICues | Occurs when the focus or keyboard user interface (UI) cues change. (Inherited from Control.) | |
Click | Occurs when the control is clicked. (Inherited from Control.) | |
ClientSizeChanged | Occurs when the value of the ClientSize property changes. (Inherited from Control.) | |
ContextMenuChanged | Occurs when the value of the ContextMenu property changes. (Inherited from Control.) | |
ContextMenuStripChanged | Occurs when the value of the ContextMenuStrip property changes. (Inherited from Control.) | |
ControlAdded | Occurs when a new control is added to the Control.ControlCollection. (Inherited from Control.) | |
ControlRemoved | Occurs when a control is removed from the Control.ControlCollection. (Inherited from Control.) | |
CursorChanged | Occurs when the value of the Cursor property changes. (Inherited from Control.) | |
Disposed | Occurs when the component is disposed by a call to the Dispose method. (Inherited from Component.) | |
DockChanged | Occurs when the value of the Dock property changes. (Inherited from Control.) | |
DoubleClick | Occurs when the control is double-clicked. (Inherited from Control.) | |
DragDrop | Occurs when a drag-and-drop operation is completed. (Inherited from Control.) | |
DragEnter | Occurs when an object is dragged into the control's bounds. (Inherited from Control.) | |
DragLeave | Occurs when an object is dragged out of the control's bounds. (Inherited from Control.) | |
DragOver | Occurs when an object is dragged over the control's bounds. (Inherited from Control.) | |
DrawNode | Occurs when a TreeView is drawn and the DrawMode property is set to a TreeViewDrawMode value other than Normal. | |
EnabledChanged | Occurs when the Enabled property value has changed. (Inherited from Control.) | |
Enter | Occurs when the control is entered. (Inherited from Control.) | |
FontChanged | Occurs when the Font property value changes. (Inherited from Control.) | |
ForeColorChanged | Occurs when the ForeColor property value changes. (Inherited from Control.) | |
GiveFeedback | Occurs during a drag operation. (Inherited from Control.) | |
GotFocus | Occurs when the control receives focus. (Inherited from Control.) | |
HandleCreated | Occurs when a handle is created for the control. (Inherited from Control.) | |
HandleDestroyed | Occurs when the control's handle is in the process of being destroyed. (Inherited from Control.) | |
HelpRequested | Occurs when the user requests help for a control. (Inherited from Control.) | |
ImeModeChanged | Occurs when the ImeMode property has changed. (Inherited from Control.) | |
Invalidated | Occurs when a control's display requires redrawing. (Inherited from Control.) | |
ItemDrag | Occurs when the user begins dragging a node. | |
KeyDown | Occurs when a key is pressed while the control has focus. (Inherited from Control.) | |
KeyPress | Occurs when a key is pressed while the control has focus. (Inherited from Control.) | |
KeyUp | Occurs when a key is released while the control has focus. (Inherited from Control.) | |
Layout | Occurs when a control should reposition its child controls. (Inherited from Control.) | |
Leave | Occurs when the input focus leaves the control. (Inherited from Control.) | |
LocationChanged | Occurs when the Location property value has changed. (Inherited from Control.) | |
LostFocus | Occurs when the control loses focus. (Inherited from Control.) | |
MarginChanged | Occurs when the control's margin changes. (Inherited from Control.) | |
MouseCaptureChanged | Occurs when the control loses mouse capture. (Inherited from Control.) | |
MouseClick | Occurs when the control is clicked by the mouse. (Inherited from Control.) | |
MouseDoubleClick | Occurs when the control is double clicked by the mouse. (Inherited from Control.) | |
MouseDown | Occurs when the mouse pointer is over the control and a mouse button is pressed. (Inherited from Control.) | |
MouseEnter | Occurs when the mouse pointer enters the control. (Inherited from Control.) | |
MouseHover | Occurs when the mouse pointer rests on the control. (Inherited from Control.) | |
MouseLeave | Occurs when the mouse pointer leaves the control. (Inherited from Control.) | |
MouseMove | Occurs when the mouse pointer is moved over the control. (Inherited from Control.) | |
MouseUp | Occurs when the mouse pointer is over the control and a mouse button is released. (Inherited from Control.) | |
MouseWheel | Occurs when the mouse wheel moves while the control has focus. (Inherited from Control.) | |
Move | Occurs when the control is moved. (Inherited from Control.) | |
NodeMouseClick | Occurs when the user clicks a TreeNode with the mouse. | |
NodeMouseDoubleClick | Occurs when the user double-clicks a TreeNode with the mouse. | |
NodeMouseHover | Occurs when the mouse hovers over a TreeNode. | |
PaddingChanged | Infrastructure. Occurs when the value of the Padding property changes. | |
Paint | Infrastructure. Occurs when the TreeView is drawn. | |
ParentChanged | Occurs when the Parent property value changes. (Inherited from Control.) | |
PreviewKeyDown | Occurs before the KeyDown event when a key is pressed while focus is on this control. (Inherited from Control.) | |
QueryAccessibilityHelp | Occurs when AccessibleObject is providing help to accessibility applications. (Inherited from Control.) | |
QueryContinueDrag | Occurs during a drag-and-drop operation and enables the drag source to determine whether the drag-and-drop operation should be canceled. (Inherited from Control.) | |
RegionChanged | Occurs when the value of the Region property changes. (Inherited from Control.) | |
Resize | Occurs when the control is resized. (Inherited from Control.) | |
RightToLeftChanged | Occurs when the RightToLeft property value changes. (Inherited from Control.) | |
RightToLeftLayoutChanged | Occurs when the value of the RightToLeftLayout property changes. | |
SizeChanged | Occurs when the Size property value changes. (Inherited from Control.) | |
StyleChanged | Occurs when the control style changes. (Inherited from Control.) | |
SystemColorsChanged | Occurs when the system colors change. (Inherited from Control.) | |
TabIndexChanged | Occurs when the TabIndex property value changes. (Inherited from Control.) | |
TabStopChanged | Occurs when the TabStop property value changes. (Inherited from Control.) | |
TextChanged | Infrastructure. Occurs when the Text property changes. | |
Validated | Occurs when the control is finished validating. (Inherited from Control.) | |
Validating | Occurs when the control is validating. (Inherited from Control.) | |
VisibleChanged | Occurs when the Visible property value changes. (Inherited from Control.) |
Ejemplo 21
Esta demostración tiene por objetivo enseñar a trabajar con el control TreeView para agrupar elementos en jerarquías. Además tambien enseña como mostrar imágenes en cada elemento usando para ello un ImageList.
El ejemplo trabaja con un formulario que presenta en una vista de árbol los módulos de un Sistema de Planeamiento de Recursos Empresariales (ERP). Al seleccionar uno de los elementos, en la parte inferior se muestra una breve descripción de éste. Para lo cual debemos realizar los siguientes pasos:
1. Crear una Aplicación Windows en Visual Basic .NET llamada Ejemplo21. El IDE a utilizar es Microsoft Visual Studio 2012.
2. En la ventana del explorador de soluciones seleccionar el archivo Form1 y en la ventana de propiedades cambiar la propiedad FileName a frmERP.
3. En el diseñador de formularios Windows, arrastrar 1 control ImageList, 1 TreeView y 1 Label, luego configurar las propiedades, tal como se muestra en el siguiente cuadro:
Objeto | Propiedad | Valor |
---|---|---|
Form1 | Name | frmERP |
StartPosition | CenterScreen | |
Text | SistemaERP | |
ImageList1 | Name | ilsERP |
TreeView1 | Name | tvwERP |
Anchor | Top, Bottom, Left, Right | |
ImageList | ilsERP | |
Location | X=0, Y=0 | |
Size | Width=292, Height=223 | |
Label1 | Name | lblDescripcion |
BorderStyle | Fixed3D | |
Dock | Bottom | |
ForeColor | Blue | |
Location | X=0, Y=237 | |
Size | Width=284, Height=36 | |
Text | ||
TextAlign | MiddleCenter |
4. Seleccionar el control ImageList que se encuentra en el diseñador de componentes y clic al botón de abrir diálogo en la propiedad Images.
5. En la ventana del Editor de Colección de Imágenes, añadir 7 imágenes que representen a las figuras de los nodos del TreeView y clic en "Aceptar". Las imagenes a utilizar se encuentran en la carpeta del ejemplo que puede descargar al final de la publicación.
6. En la ventana explorador de soluciones dar clic en el botón "View Code".
7. Escribir el procedimiento de evento llamado LlenarArbol, que permita llenar los elementos del TreeView en el evento "Load" del formulario, tal como se muestra en el código:
Nota:
Para cada nodo del TreeVíew (TreeNode) se tiene un mensaje de texto (Text), un índice de la imagen cuando el nodo no está seleccionado (Imagelndex), un índice de la imagen cuando el nodo está seleccionado (SelectedImagelndex) y una descripción (Tag). Ambos índices se refieren a la posición de la imagen en el control ImageList.
8. Para mostrar una descripción al seleccionar un nodo, crear el procedimiento de evento llamado MostrarDescripcion, que ocurra en el evento "AfterSelect" del TreeView, tal como se muestra en el siguiente código:
9. Configurar frmERP como el formulario de inicio. Por defecto lo está.
10. Grabar y ejecutar la aplicación pulsando F5.
Nota:
Por defecto, los nodos de la vista de árbol no se ven expandidos, en nuestro ejemplo, para expandir todos los elementos automáticamente hemos usado el método ExpandAll() incluido al final del procedimiento de evento LlenarArbol.
11. Seleccione un nodo del árbol y vea la descripción en la parte inferior.
12. Finalize la ejecución de la aplicación.
Espero haber ayudado en algo. Adjunto el ejemplo en el siguiente enlace:
Ejemplo21 - Descargar
Hasta la próxima oportunidad!
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