DxTreeViewNode.AllowCheck Property

Specifies whether the TreeView node can be checked.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

[DefaultValue(true)]
[Parameter]
public bool AllowCheck { get; set; }

Property Value

Type	Default	Description
Boolean	true	true to allow a node check; otherwise, false.

Remarks

Set the CheckMode property to Multiple or Recursive to display checkboxes in nodes. The CheckedChanged event is raised when a user changes a node’s check state.

Set the AllowCheck property to false to hide a checkbox for the node.

You can use the CheckBoxReadOnly property to activate read-only mode for the node’s check box.

<DxTreeView CheckMode="TreeViewCheckMode.Multiple">
    <Nodes>
        <DxTreeViewNode Text="Metals">
            <Nodes>
                <DxTreeViewNode CheckBoxReadOnly="true" Text="Alkali metals"/>
                <DxTreeViewNode CheckBoxReadOnly="true" Text="Alkaline earth metals" />
                <DxTreeViewNode Text="Inner transition elements">
                    <Nodes>
                        <DxTreeViewNode Text="Lanthanides"/>
                        <DxTreeViewNode Text="Actinides" />
                    </Nodes>
                </DxTreeViewNode>
                <DxTreeViewNode AllowCheck="false" Text="Transition elements" />
                <DxTreeViewNode AllowCheck="false" Text="Other metals" />
            </Nodes>
        </DxTreeViewNode>
        <DxTreeViewNode Text="Metalloids"/>
        <DxTreeViewNode Text="Nonmetals">
            <Nodes>
                <DxTreeViewNode Text="Halogens"/>
                <DxTreeViewNode Text="Noble gases"/>
                <DxTreeViewNode Text="Other nonmetals"/>
            </Nodes>
        </DxTreeViewNode>
    </Nodes>
</DxTreeView>