TreeViewNodeCancelEventArgs.Cancel Property

Specifies whether the action that raised the event should be canceled.

Assembly : DevExpress.Blazor.v25.2.dll

Declaration

csharp

public bool Cancel { get; set; }

Property Value

Type	Description
Boolean

true, if the action that raised the event should be canceled; otherwise, false.

Remarks

The following code snippet prohibits root-level nodes from collapsing.

razor

<DxTreeView BeforeCollapse="@BeforeCollapse">
    ...
</DxTreeView>

@code {
    void BeforeCollapse(TreeViewNodeCancelEventArgs e) {
        if (e.NodeInfo.Level == 0) e.Cancel = true; 
    }
}