DxTreeView.NodeExpandCollapseAction Property
Specifies user actions that expand or collapse a node.
Namespace: DevExpress.Blazor
Assembly: DevExpress.Blazor.v23.2.dll
NuGet Package: DevExpress.Blazor
Declaration
[DefaultValue(TreeViewNodeExpandCollapseAction.Auto)]
[Parameter]
public TreeViewNodeExpandCollapseAction NodeExpandCollapseAction { get; set; }Property Value
| Type | Default | Description |
|---|---|---|
| TreeViewNodeExpandCollapseAction | Auto | A TreeViewNodeExpandCollapseAction enumeration value. |
Available values:
| Name | Description |
|---|---|
| Auto | When node selection is disabled, users can click a node or its Expand/Collapse button to expand/collapse the node. |
| NodeClick | Users can click a node or its Expand/Collapse button to expand/collapse the node. |
| NodeDoubleClick | Users can double click a node or click the node’s Expand/Collapse button to expand/collapse the node. |
| ButtonClick | Users can click a node’s Expand/Collapse button to expand/collapse the node. |
Remarks
To expand/collapse a TreeView node, users should click the node or its Expand/Collapse button. If node selection is enabled, users should double-click nodes or click the Expand/Collapse buttons.
Use the NodeExpandCollapseAction property to change these user actions. For instance, the following example demonstrates how to expand/collapse nodes when users click the Expand/Collapse buttons:
<DxTreeView NodeExpandCollapseAction="TreeViewNodeExpandCollapseAction.ButtonClick" ...>
@* ... *@
</DxTreeView>