TreeViewNodeCancelEventArgs.Cancel Property

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

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v23.2.dll

NuGet Package: DevExpress.Blazor

Declaration

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 code sample below demonstrates how to prohibit root-level nodes from collapsing.

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

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