Skip to main content

GridGroupFooterDisplayMode Enum

Lists values that specify display modes for group footers.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v22.1.dll

Declaration

public enum GridGroupFooterDisplayMode

Members

Name Description
Auto

Group footers are visible if they display group summary values or your custom group footer templates and the corresponding groups are expanded. Otherwise, group footers are hidden.

Never

Group footers are always hidden even if they contain group summary values or if you specify a custom group footer template.

IfExpanded

Group footers are visible for expanded groups only.

Always

Group footers are always visible regardless of footer content and the groups’ expanded states.

Remarks

Use the GroupFooterDisplayMode property to specify when to display group footers. The default property value is Auto. The Grid shows group footers if they display group summary values or your custom group footer templates and the corresponding groups are expanded. Otherwise, group footers are hidden.

Run Demo: Grid - Group Footer Summary

Blazor Grid Group Footers Display Mode Auto

The following example changes GroupFooterDisplayMode to Always.

Blazor Grid Group Footers Display Mode Always

@using Microsoft.EntityFrameworkCore
@inject IDbContextFactory<NorthwindContext> NorthwindContextFactory
@implements IDisposable
@* ... *@
<DxGrid Data="@Data"
        ShowGroupPanel="true"
        UnboundColumnData="Grid_CustomUnboundColumnData"
        GroupFooterDisplayMode="GridGroupFooterDisplayMode.Always">
    <Columns>
        <DxGridDataColumn FieldName="Country" />
        <DxGridDataColumn FieldName="City" />
        <DxGridDataColumn FieldName="OrderDate" GroupIndex="0" />
        <DxGridDataColumn FieldName="UnitPrice" DisplayFormat="c" />
        <DxGridDataColumn FieldName="Quantity" />
        <DxGridDataColumn FieldName="TotalPrice"
                          DisplayFormat="c"
                          UnboundType="GridUnboundColumnType.Decimal" />
    </Columns>
    <GroupSummary>
        <DxGridSummaryItem SummaryType="GridSummaryItemType.Count" FieldName="Country" />
        <DxGridSummaryItem SummaryType="GridSummaryItemType.Sum" FieldName="TotalPrice"
                           FooterColumnName="TotalPrice" />
    </GroupSummary>
</DxGrid>

@code {
    object Data { get; set; }
    NorthwindContext Northwind { get; set; }

    protected override void OnInitialized() {
        Northwind = NorthwindContextFactory.CreateDbContext();
        Data = Northwind.Invoices
            .ToList();
    }

    void Grid_CustomUnboundColumnData(GridUnboundColumnDataEventArgs e) {
        if (e.FieldName == "TotalPrice") {
            var UnitPrice = Convert.ToDecimal(e.GetRowValue("UnitPrice"));
            var Quantity = Convert.ToDecimal(e.GetRowValue("Quantity"));
            var Discount = Convert.ToDecimal(e.GetRowValue("Discount"));
            e.Value = Quantity * UnitPrice * (1 - Discount);
        }
    }

    public void Dispose() {
        Northwind?.Dispose();
    }
}
See Also