TreeView Members
.NET Framework 3.0
Displays hierarchical data, such as a table of contents, in a tree structure.
The following tables list the members exposed by the TreeView type.
(see also
Protected Properties
)
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| Name | Description | |
|---|---|---|
| AccessKey | Gets or sets the access key that allows you to quickly navigate to the Web server control.(inherited from WebControl) |
| AppRelativeTemplateSourceDirectory | Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control.(inherited from Control) |
| Attributes | Gets the collection of arbitrary attributes (for rendering only) that do not correspond to properties on the control.(inherited from WebControl) |
| AutoGenerateDataBindings | Gets or sets a value indicating whether the TreeView control automatically generates tree node bindings. |
| BackColor | Gets or sets the background color of the Web server control.(inherited from WebControl) |
| BindingContainer | Gets the control that contains this control's data binding.(inherited from Control) |
| BorderColor | Gets or sets the border color of the Web control.(inherited from WebControl) |
| BorderStyle | Gets or sets the border style of the Web server control.(inherited from WebControl) |
| BorderWidth | Gets or sets the border width of the Web server control.(inherited from WebControl) |
| CheckedNodes | Gets a collection of TreeNode objects that represent the nodes in the TreeView control that display a selected check box. |
| ClientID | Gets the server control identifier generated by ASP.NET.(inherited from Control) |
| CollapseImageToolTip | Gets or sets the ToolTip for the image that is displayed for the collapsible node indicator. |
| CollapseImageUrl | Gets or sets the URL to a custom image for the collapsible node indicator. |
| Controls | Gets a ControlCollection object that represents the child controls for a specified server control in the UI hierarchy.(inherited from Control) |
| ControlStyle | Gets the style of the Web server control. This property is used primarily by control developers.(inherited from WebControl) |
| ControlStyleCreated | Gets a value indicating whether a Style object has been created for the ControlStyle property. This property is primarily used by control developers.(inherited from WebControl) |
| CssClass | Gets or sets the Cascading Style Sheet (CSS) class rendered by the Web server control on the client.(inherited from WebControl) |
| DataBindings | Gets a collection of TreeNodeBinding objects that define the relationship between a data item and the node that it is binding to. |
| DataSource | Gets or sets the object from which the data-bound control retrieves its list of data items.(inherited from BaseDataBoundControl) |
| DataSourceID | (inherited from HierarchicalDataBoundControl) |
| EnableClientScript | Gets or sets a value indicating whether the TreeView control renders client-side script to handle expanding and collapsing events. |
| Enabled | Gets or sets a value indicating whether the Web server control is enabled.(inherited from WebControl) |
| EnableTheming | Gets or sets a value indicating whether themes apply to this control.(inherited from WebControl) |
| EnableViewState | Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client.(inherited from Control) |
| ExpandDepth | Gets or sets the number of levels that are expanded when a TreeView control is displayed for the first time. |
| ExpandImageToolTip | Gets or sets the ToolTip for the image that is displayed for the expandable node indicator. |
| ExpandImageUrl | Gets or sets the URL to a custom image for the expandable node indicator. |
| Font | Gets the font properties associated with the Web server control.(inherited from WebControl) |
| ForeColor | Gets or sets the foreground color (typically the color of the text) of the Web server control.(inherited from WebControl) |
| HasAttributes | Gets a value indicating whether the control has attributes set.(inherited from WebControl) |
| Height | Gets or sets the height of the Web server control.(inherited from WebControl) |
| HoverNodeStyle | Gets a reference to the TreeNodeStyle object that allows you to set the appearance of a node when the mouse pointer is positioned over it. |
| ID | Gets or sets the programmatic identifier assigned to the server control.(inherited from Control) |
| ImageSet | Gets or sets the group of images to use for the TreeView control. |
| LeafNodeStyle | Gets a reference to the TreeNodeStyle object that allows you to set the appearance of leaf nodes. |
| LevelStyles | Gets a collection of Style objects that represent the node styles at the individual levels of the tree. |
| LineImagesFolder | Gets or sets the path to a folder that contains the line images that are used to connect child nodes to parent nodes. |
| MaxDataBindDepth | Gets or sets the maximum number of tree levels to bind to the TreeView control. |
| NamingContainer | Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same Control.ID property value.(inherited from Control) |
| NodeIndent | Gets or sets the indentation amount (in pixels) for the child nodes of the TreeView control. |
| Nodes | Gets a collection of TreeNode objects that represents the root nodes in the TreeView control. |
| NodeStyle | Gets a reference to the TreeNodeStyle object that allows you to set the default appearance of the nodes in the TreeView control. |
| NodeWrap | Gets or sets a value indicating whether text wraps in a node when the node runs out of space. |
| NoExpandImageUrl | Gets or sets the URL to a custom image for the non-expandable node indicator. |
| Page | Gets a reference to the Page instance that contains the server control.(inherited from Control) |
| Parent | Gets a reference to the server control's parent control in the page control hierarchy.(inherited from Control) |
| ParentNodeStyle | Gets a reference to the TreeNodeStyle object that allows you to set the appearance of parent nodes in the TreeView control. |
| PathSeparator | Gets or sets the character that is used to delimit the node values that are specified by the ValuePath property. |
| PopulateNodesFromClient | Gets or sets a value indicating whether node data is populated on demand from the client. |
| RootNodeStyle | Gets a reference to the TreeNodeStyle object that allows you to set the appearance of the root node in the TreeView control. |
| SelectedNode | Gets a TreeNode object that represents the selected node in the TreeView control. |
| SelectedNodeStyle | Gets the TreeNodeStyle object that controls the appearance of the selected node in the TreeView control. |
| SelectedValue | Gets the value of the selected node. |
| ShowCheckBoxes | Gets or sets a value indicating which node types will display a check box in the TreeView control. |
| ShowExpandCollapse | Gets or sets a value indicating whether expansion node indicators are displayed. |
| ShowLines | Gets or sets a value indicating whether lines connecting child nodes to parent nodes are displayed. |
| Site | Gets information about the container that hosts the current control when rendered on a design surface.(inherited from Control) |
| SkinID | Gets or sets the skin to apply to the control.(inherited from WebControl) |
| SkipLinkText | Gets or sets a value that is used to render alternate text for screen readers to skip the content for the control. |
| Style | Gets a collection of text attributes that will be rendered as a style attribute on the outer tag of the Web server control.(inherited from WebControl) |
| TabIndex | Gets or sets the tab index of the Web server control.(inherited from WebControl) |
| Target | Gets or sets the target window or frame in which to display the Web page content that is associated with a node. |
| TemplateControl | Gets or sets a reference to the template that contains this control. (inherited from Control) |
| TemplateSourceDirectory | Gets the virtual directory of the Page or UserControl that contains the current server control.(inherited from Control) |
| ToolTip | Gets or sets the text displayed when the mouse pointer hovers over the Web server control.(inherited from WebControl) |
| UniqueID | Gets the unique, hierarchically qualified identifier for the server control.(inherited from Control) |
| Visible | Overridden. Gets or sets a value indicating whether the control is rendered as UI on the page. |
| Width | Gets or sets the width of the Web server control.(inherited from WebControl) |
| Name | Description | |
|---|---|---|
| Adapter | Gets the browser-specific adapter for the control.(inherited from Control) |
| ChildControlsCreated | Gets a value that indicates whether the server control's child controls have been created.(inherited from Control) |
| ClientIDSeparator | Gets a character value representing the separator character used in the ClientID property.(inherited from Control) |
| Context | Gets the HttpContext object associated with the server control for the current Web request.(inherited from Control) |
| DesignMode | Gets a value indicating whether a control is being used on a design surface.(inherited from Control) |
| Events | Gets a list of event handler delegates for the control. This property is read-only.(inherited from Control) |
| HasChildViewState | Gets a value indicating whether the current server control's child controls have any saved view-state settings.(inherited from Control) |
| IdSeparator | Gets the character used to separate control identifiers.(inherited from Control) |
| Initialized | Gets a value indicating whether the data-bound control has been initialized.(inherited from BaseDataBoundControl) |
| IsBoundUsingDataSourceID | Gets a value indicating whether the DataSourceID property is set.(inherited from BaseDataBoundControl) |
| IsChildControlStateCleared | Gets a value indicating whether controls contained within this control have control state.(inherited from Control) |
| IsEnabled | Gets a value indicating whether the control is enabled.(inherited from WebControl) |
| IsTrackingViewState | Gets a value that indicates whether the server control is saving changes to its view state.(inherited from Control) |
| IsViewStateEnabled | Gets a value indicating whether view state is enabled for this control.(inherited from Control) |
| LoadViewStateByID | Gets a value indicating whether the control participates in loading its view state by ID instead of index. (inherited from Control) |
| RequiresDataBinding | Gets or sets a value indicating whether the DataBind method should be called. (inherited from BaseDataBoundControl) |
| TagKey | Overridden. Gets the System.Web.UI.HtmlTextWriterTag value for the TreeView control. |
| TagName | Gets the name of the control tag. This property is used primarily by control developers.(inherited from WebControl) |
| ViewState | Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page.(inherited from Control) |
| ViewStateIgnoresCase | Gets a value that indicates whether the StateBag object is case-insensitive.(inherited from Control) |
(see also
Protected Methods
)
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| Name | Description | |
|---|---|---|
| ApplyStyle | Copies any nonblank elements of the specified style to the Web control, overwriting any existing style elements of the control. This method is primarily used by control developers. (inherited from WebControl) |
| ApplyStyleSheetSkin | Applies the style properties defined in the page style sheet to the control. (inherited from Control) |
| CollapseAll | Closes every node in the tree. |
| CopyBaseAttributes | Copies the properties not encapsulated by the Style object from the specified Web server control to the Web server control that this method is called from. This method is used primarily by control developers. (inherited from WebControl) |
| DataBind | Overloaded. Overridden. Binds data from the data source to the control. |
| Dispose | Enables a server control to perform final clean up before it is released from memory. (inherited from Control) |
| Equals | Overloaded. Determines whether two Object instances are equal. (inherited from Object) |
| ExpandAll | Opens every node in the tree. |
| FindControl | Overloaded. Searches the current naming container for the specified server control. (inherited from Control) |
| FindNode | Retrieves the TreeNode object in the TreeView control at the specified value path. |
| Focus | Sets input focus to a control. (inherited from Control) |
| GetHashCode | Serves as a hash function for a particular type. (inherited from Object) |
| GetType | Gets the Type of the current instance. (inherited from Object) |
| HasControls | Determines if the server control contains any child controls. (inherited from Control) |
| MergeStyle | Copies any nonblank elements of the specified style to the Web control, but will not overwrite any existing style elements of the control. This method is used primarily by control developers. (inherited from WebControl) |
| ReferenceEquals | Determines whether the specified Object instances are the same instance. (inherited from Object) |
| RenderBeginTag | Overridden. Renders the HTML opening tag of the control to the specified writer. |
| RenderControl | Overloaded. Outputs server control content and stores tracing information about the control if tracing is enabled. (inherited from Control) |
| RenderEndTag | Overridden. Renders the HTML closing tag of the control to the specified writer. |
| ResolveClientUrl | Gets a URL that can be used by the browser. (inherited from Control) |
| ResolveUrl | Converts a URL into one that is usable on the requesting client. (inherited from Control) |
| SetRenderMethodDelegate | Assigns an event handler delegate to render the server control and its content into its parent control. (inherited from Control) |
| ToString | Returns a String that represents the current Object. (inherited from Object) |
| Name | Description | |
|---|---|---|
| AddAttributesToRender | Overridden. Adds HTML attributes and styles that need to be rendered to the specified T:System.Web.UI.HtmlTextWriter control. |
| AddedControl | Called after a child control is added to the Controls collection of the Control object. (inherited from Control) |
| AddParsedSubObject | Notifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object. (inherited from Control) |
| BuildProfileTree | Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page. (inherited from Control) |
| ClearChildControlState | Deletes the control-state information for the server control's child controls. (inherited from Control) |
| ClearChildState | Deletes the view-state and control-state information for all the server control's child controls. (inherited from Control) |
| ClearChildViewState | Deletes the view-state information for all the server control's child controls. (inherited from Control) |
| ConfirmInitState | Sets the initialized state of the data-bound control. (inherited from BaseDataBoundControl) |
| CreateChildControls | Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering. (inherited from Control) |
| CreateControlCollection | Overridden. Creates a collection to store child controls. |
| CreateControlStyle | Creates the style object that is used internally by the WebControl class to implement all style related properties. This method is used primarily by control developers. (inherited from WebControl) |
| CreateNode | Returns a new instance of the TreeNode class. The CreateNode is a helper method. |
| DataBind | Overloaded. Binds a data source to the invoked server control and all its child controls. (inherited from Control) |
| DataBindChildren | Binds a data source to the server control's child controls. (inherited from Control) |
| EnsureChildControls | Determines whether the server control contains child controls. If it does not, it creates child controls. (inherited from Control) |
| EnsureDataBound | Calls the DataBind method if the DataSourceID property is set and the data-bound control is marked to require binding. (inherited from BaseDataBoundControl) |
| EnsureID | Creates an identifier for controls that do not have an identifier assigned. (inherited from Control) |
| Finalize | Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (inherited from Object) |
| FindControl | Overloaded. Searches the current naming container for the specified server control. (inherited from Control) |
| GetCallbackResult | Returns the result of a callback event that targets a control. |
| GetData | Retrieves a HierarchicalDataSourceView object that the data-bound control uses to perform data operations. (inherited from HierarchicalDataBoundControl) |
| GetDataSource | Retrieves the IHierarchicalDataSource that the data-bound control is associated with, if any. (inherited from HierarchicalDataBoundControl) |
| GetDesignModeState | Gets design-time data for a control. (inherited from Control) |
| HasEvents | Returns a value indicating whether events are registered for the control or any child controls. (inherited from Control) |
| IsLiteralContent | Determines if the server control holds only literal content. (inherited from Control) |
| LoadControlState | Restores control-state information from a previous page request that was saved by the SaveControlState method. (inherited from Control) |
| LoadPostData | Processes postback data for the TreeView control. |
| LoadViewState | Overridden. Loads the previously saved view state of the TreeView control. |
| MapPathSecure | Retrieves the physical path that a virtual path, either absolute or relative, maps to. (inherited from Control) |
| MarkAsDataBound | Sets the state of the control in view state as successfully bound to data. (inherited from HierarchicalDataBoundControl) |
| MemberwiseClone | Creates a shallow copy of the current Object. (inherited from Object) |
| OnBubbleEvent | Determines whether the event for the server control is passed up the page's UI server control hierarchy. (inherited from Control) |
| OnDataBinding | Raises the DataBinding event. (inherited from Control) |
| OnDataBound | Raises the DataBound event. (inherited from BaseDataBoundControl) |
| OnDataPropertyChanged | Called when one of the base data source identification properties is changed, to re-bind the data-bound control to its data. (inherited from HierarchicalDataBoundControl) |
| OnDataSourceChanged | Called when the IHierarchicalDataSource instance that the data-bound control works with raises the DataSourceChanged event. (inherited from HierarchicalDataBoundControl) |
| OnInit | Overridden. Raises the Init event. |
| OnLoad | Handles the Load event. (inherited from HierarchicalDataBoundControl) |
| OnPagePreLoad | Sets the initialized state of the data-bound control before the control is loaded. (inherited from HierarchicalDataBoundControl) |
| OnPreRender | Overridden. Raises the Control.PreRender event. |
| OnSelectedNodeChanged | Raises the SelectedNodeChanged event of the TreeView control. |
| OnTreeNodeCheckChanged | Raises the TreeNodeCheckChanged event of the TreeView control. |
| OnTreeNodeCollapsed | Raises the TreeNodeCollapsed event of the TreeView control. |
| OnTreeNodeDataBound | Raises the TreeNodeDataBound event of the TreeView control. |
| OnTreeNodeExpanded | Raises the TreeNodeExpanded event of the TreeView control. |
| OnTreeNodePopulate | Raises the TreeNodePopulate event of the TreeView control. |
| OnUnload | Raises the Unload event. (inherited from Control) |
| OpenFile | Gets a Stream used to read a file. (inherited from Control) |
| PerformDataBinding | Overridden. Creates all the nodes based on the data source. |
| PerformSelect | Retrieves data from the associated data source. (inherited from HierarchicalDataBoundControl) |
| RaiseBubbleEvent | Assigns any sources of the event and its information to the control's parent. (inherited from Control) |
| RaiseCallbackEvent | Raises the callback event using the specified arguments. |
| RaisePostBackEvent | Enables the TreeView control to process an event that is raised when a form is posted to the server. The RaisePostBackEvent method is a helper method for the System.Web.UI.IPostBackEventHandler.RaisePostBackEvent method. |
| RaisePostDataChangedEvent | Signals the TreeView control to notify the ASP.NET application that the state of the control has changed. |
| RemovedControl | Called after a child control is removed from the Controls collection of the Control object. (inherited from Control) |
| Render | Renders the control to the specified HTML writer. (inherited from WebControl) |
| RenderChildren | Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client. (inherited from Control) |
| RenderContents | Overridden. Renders the nodes in the TreeView control. |
| RenderControl | Overloaded. Outputs server control content and stores tracing information about the control if tracing is enabled. (inherited from Control) |
| ResolveAdapter | Gets the control adapter responsible for rendering the specified control. (inherited from Control) |
| SaveControlState | Saves any server control state changes that have occurred since the time the page was posted back to the server. (inherited from Control) |
| SaveViewState | Overridden. Saves the state of the TreeView control. |
| SetDesignModeState | Sets design-time data for a control. (inherited from Control) |
| SetNodeDataBound | Allows a derived class to set whether the specified TreeNode control is data-bound. |
| SetNodeDataItem | Allows a derived class to set the data item for the specified TreeNode control. |
| SetNodeDataPath | Allows a derived class to set the data path for the specified TreeNode control. |
| TrackViewState | Overridden. Tracks view-state changes to the TreeView control so that they can be stored in the System.Web.UI.StateBag object for the control. This System.Web.UI.StateBag is accessible through the Control.ViewState property. |
| ValidateDataSource | Verifies that the object a data-bound control binds to is one it can work with. (inherited from HierarchicalDataBoundControl) |
| Name | Description | |
|---|---|---|
| DataBinding | Occurs when the server control binds to a data source.(inherited from Control) |
| DataBound | Occurs after the server control binds to a data source.(inherited from BaseDataBoundControl) |
| Disposed | Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested.(inherited from Control) |
| Init | Occurs when the server control is initialized, which is the first step in its lifecycle.(inherited from Control) |
| Load | Occurs when the server control is loaded into the Page object.(inherited from Control) |
| PreRender | Occurs after the Control object is loaded but prior to rendering.(inherited from Control) |
| SelectedNodeChanged | Occurs when a node is selected in the TreeView control. |
| TreeNodeCheckChanged | Occurs when a check box in the TreeView control changes state between posts to the server. |
| TreeNodeCollapsed | Occurs when a node is collapsed in the TreeView control. |
| TreeNodeDataBound | Occurs when a data item is bound to a node in the TreeView control. |
| TreeNodeExpanded | Occurs when a node is expanded in the TreeView control. |
| TreeNodePopulate | Occurs when a node with its PopulateOnDemand property set to true is expanded in the TreeView control. |
| Unload | Occurs when the server control is unloaded from memory.(inherited from Control) |
| Name | Description | |
|---|---|---|
| System.Web.UI.ICallbackEventHandler.GetCallbackResult | Returns the result of a callback event that targets a control. |
| System.Web.UI.ICallbackEventHandler.RaiseCallbackEvent | Raises the callback event using the specified arguments. |
| System.Web.UI.IPostBackDataHandler.LoadPostData | Processes postback data for the TreeView control. |
| System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent | Signals the TreeView control to notify the ASP.NET application that the state of the control has changed. |
| System.Web.UI.IPostBackEventHandler.RaisePostBackEvent | Enables the TreeView control to process an event that is raised when a form is posted to the server. |
Reference
TreeView ClassSystem.Web.UI.WebControls Namespace
DataBoundControl.DataSourceID Property
DataBindings
EnableClientScript
IHierarchicalDataSource
Nodes
ShowCheckBoxes
TreeNode
TreeNodeBinding
TreeNodeStyle
TreeNodeCollection
SiteMapDataSource
TreeNodeCheckChanged
SelectedNodeChanged
TreeNodeExpanded
TreeNodeCollapsed
TreeNodePopulate
TreeNodeDataBound
Other Resources
ASP.NET Site MapsCommunity Additions
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