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NodeExpandCollapseCommand

Class

Expands or collapses a node, optionally using a supplied Boolean state.

Definition

Assembly:Telerik.WinControls.UI.dll

Syntax:

public class NodeExpandCollapseCommand : CommandBase, IImageListProvider

Inheritance: objectCommandBaseNodeExpandCollapseCommand

public NodeExpandCollapseCommand()

Determines whether the command can change a tree node's expanded state.

public override bool CanExecute(object parameter)

Parameters:parameterobject

The candidate node.

Returns:

true for a RadTreeNode; otherwise, the base command result.

Toggles the node when no state is supplied, or applies the requested expanded state.

public override object Execute(params object[] settings)

Parameters:settingsobject[]

The first setting is the node; an optional second setting is a Boolean state or an IList containing that state.

Returns:

The node's resulting expanded state, or null when the command cannot execute.