DxTreeListBandColumn.Columns Property

Allows you to add child columns to a band.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

[Parameter]
public RenderFragment Columns { get; set; }

Property Value

Type	Description
RenderFragment	Markup of child columns.

Remarks

The following code snippet declares child columns for Sales and Year-Over-Year Comparison bands:

<DxTreeList Data="TreeListData" KeyFieldName="ID" ParentKeyFieldName="RegionID">
    <Columns>
        <DxTreeListBandColumn Caption="Sales">
            <Columns>
                <DxTreeListDataColumn FieldName="Region" />
                <DxTreeListDataColumn FieldName="MarchSales" Caption="March" DisplayFormat="c0" />
                <DxTreeListDataColumn FieldName="SeptemberSales" Caption="September" DisplayFormat="c0" />
            </Columns>
        </DxTreeListBandColumn>
        <DxTreeListBandColumn Caption="Year-Over-Year Comparison">
            <Columns>
                <DxTreeListDataColumn FieldName="MarchChange" Caption="March" DisplayFormat="p2" />
                <DxTreeListDataColumn FieldName="SeptemberChange" Caption="September" DisplayFormat="p2" />
            </Columns>
        </DxTreeListBandColumn>
        <DxTreeListDataColumn FieldName="MarketShare" DisplayFormat="p0" />
    </Columns>
</DxTreeList>

@code {
    object TreeListData { get; set; }
    protected override void OnInitialized() {
        TreeListData = SalesByRegionDataProvider.GenerateData();
    }
}

Run Demo: TreeList - Header Bands