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V24.2

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DxTreeListColumn.HeaderCaptionTemplate Property

Specifies a template used to display the column header’s caption.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

#Declaration

#Property Value

Type Description
RenderFragment<TreeListColumnHeaderCaptionTemplateContext>

The template for the column header’s caption.

#Remarks

The HeaderCaptionTemplate allows you to customize captions of individual column headers. To define a common template for all header captions in the TreeList, use the DxTreeList.ColumnHeaderCaptionTemplate.

The HeaderCaptionTemplate accepts a TreeListColumnHeaderCaptionTemplateContext object as the context parameter. You can use the parameter’s members to get the current Caption, and the Column or DataColumn object. You can also access the TreeList object and use its members to obtain additional information about the TreeList.

The following example displays custom captions for TreeList columns:

@inject SpaceObjectDataProvider SpaceObjectDataProvider

<DxTreeList Data="TreeListData" ChildrenFieldName="Satellites">
    <Columns>
        <DxTreeListDataColumn FieldName="Name" />
        <DxTreeListDataColumn FieldName="TypeOfObject" Caption="Type" />
        <DxTreeListDataColumn FieldName="Mass10pow21kg" Caption="Mass, kg" DisplayFormat="N2">
            <HeaderCaptionTemplate>Mass, 10<sup>21</sup> &#215; kg</HeaderCaptionTemplate>
        </DxTreeListDataColumn>
        <DxTreeListDataColumn FieldName="MeanRadiusInKM" Caption="Radius, km" DisplayFormat="N2"/>
        <DxTreeListDataColumn FieldName="Volume10pow9KM3" DisplayFormat="N2">
            <HeaderCaptionTemplate>Volume, 10<sup>9</sup> &#215; km<sup>3</sup></HeaderCaptionTemplate>
        </DxTreeListDataColumn>
        <DxTreeListDataColumn FieldName="SurfaceGravity" DisplayFormat="N2">
            <HeaderCaptionTemplate>Gravity, m/s<sup>2</sup></HeaderCaptionTemplate>
        </DxTreeListDataColumn>
    </Columns>
</DxTreeList>

@code {
    object TreeListData { get; set; }

    protected override async Task OnInitializedAsync() {
        TreeListData = SpaceObjectDataProvider.GenerateData();
    }
}

Bind Blazor TreeList to Hierarchical Data

Run Demo: TreeList - Hierarchical Data

For more information about templates in the TreeList component, refer to the following topic: Templates in Blazor TreeList.

See Also