ASPxTreeView Events

Represents the web navigation treelike control.

Name	Description
BeforeGetCallbackResult	Occurs after a callback sent by the current control has been processed on the server, but prior to the time the respective callback result render is formed.
CallbackError static	Allows you to handle any server exception that might occur during server-side processing of a callback sent by a DevExpress web control. Inherited from ASPxWebControl.
CheckedChanged	Fires after the node’s checked state has been changed by clicking on a check box.
ClientLayout	Allows you to save and restore the previously saved layout of the ASPxTreeView.
CustomJSProperties	Enables you to supply any server data that can then be parsed on the client.
DataBinding	Occurs when the server control binds to a data source. Inherited from Control.
DataBound	Occurs after the server control is bound to a data source. Inherited from ASPxDataWebControlBase.
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.
ExpandedChanged	Fires on the server side after a node’s expansion state has been changed by end-user interaction.
ExpandedChanging	Fires before the expansion state of a node is changed by end-user interaction.
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.
NodeClick	Fires after a node has been clicked.
NodeCommand	Fires when a control contained within a node template raises the Command event.
NodeDataBound	Occurs after a node has been bound to a data source.
PreRender	Occurs after the Control object is loaded but prior to rendering. Inherited from Control.
Unload	Occurs when the server control is unloaded from memory. Inherited from Control.
VirtualModeCreateChildren	Used to activate virtual mode. Occurs when expanding a node for the first time in this mode.