Skip to main content
All docs
V24.2

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

DxComboBoxSettings.GroupHeaderDisplayTemplate Property

Specifies the template used to display group headers when ComboBox items are grouped.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

#Declaration

#Property Value

Type Description
RenderFragment<ComboBoxGroupHeaderDisplayTemplateContext>

The template content.

#Remarks

This property allows you to specify a template content for group headers in the combo box editor:

Razor
<DxGrid Data="Products"
        EditMode="GridEditMode.EditRow"
        CustomizeEditModel="Grid_CustomizeEditModel"
        EditModelSaving="Grid_EditModelSaving">
    <Columns>
        <DxGridCommandColumn DeleteButtonVisible="false" Width="15%" />
        <DxGridDataColumn FieldName="ProductName" Width="25%" />
        <DxGridDataColumn FieldName="CategoryId" Caption="Category" Width="10%">
            <EditSettings>
                <DxComboBoxSettings Data="Categories" 
                                    ValueFieldName="CategoryId" 
                                    TextFieldName="CategoryName" 
                                    GroupFieldName="CategoryName"
                                    SearchFilterCondition="ListSearchFilterCondition.StartsWith" >
                    <GroupHeaderDisplayTemplate>Category : @context.DisplayText
                    </GroupHeaderDisplayTemplate>
                </DxComboBoxSettings>
            </EditSettings>
        </DxGridDataColumn>
        <DxGridDataColumn FieldName="UnitPrice" DisplayFormat="c" Width="10%">
            <EditSettings>
                <DxSpinEditSettings MinValue="0M" Mask="n3" />
            </EditSettings>
        </DxGridDataColumn>
        <DxGridDataColumn FieldName="UnitsInStock" />
        <DxGridDataColumn FieldName="QuantityPerUnit" Width="15%" />   
        <DxGridDataColumn FieldName="Discontinued" />
    </Columns>
</DxGrid>
See Also