DxGrid.GetGroupSummaryLabel(IGridSummaryItem, Int32) Method
Gets the name of a group summary‘s function name.
Namespace: DevExpress.Blazor
Assembly: DevExpress.Blazor.v24.2.dll
NuGet Package: DevExpress.Blazor
#Declaration
public string GetGroupSummaryLabel(
IGridSummaryItem item,
int visibleIndex
)
#Parameters
Name | Type | Description |
---|---|---|
item | IGrid |
The group summary item. |
visible |
Int32 | The group row’s index. |
#Returns
Type | Description |
---|---|
String | The group summary function’s name. |
#Remarks
Specify the DisplayText property or handle the CustomizeSummaryDisplayText event to customize the summary display text.
Note
The Grid bound to an Instant Feedback Data Source or GridGet
method, call the Wait
The following code snippet customizes group rows. These rows contain the group field values and summary values that are formatted in bold.
@using Microsoft.EntityFrameworkCore
@inject IDbContextFactory<NorthwindContext> NorthwindContextFactory
@implements IDisposable
<DxGrid Data="@Data"
ShowGroupPanel="true">
<Columns>
<DxGridDataColumn FieldName="Country" GroupIndex="0">
<GroupRowTemplate>
<text>@context.DataColumn.FieldName: @context.GroupValue</text>
@{
var summaryItems = context.Grid.GetGroupSummaryItems();
if (summaryItems.Any()) {
<text> (</text>
foreach (var i in summaryItems) {
if (i != summaryItems.First()) {
<text>, </text>
}
@context.Grid.GetGroupSummaryLabel(i, context.VisibleIndex)
<text>: </text>
<b>@context.Grid.GetGroupSummaryFormattedValue(i, context.VisibleIndex)</b>
}
<text>)</text>
}
}
</GroupRowTemplate>
</DxGridDataColumn>
<DxGridDataColumn FieldName="City" />
<DxGridDataColumn FieldName="OrderDate"/>
<DxGridDataColumn FieldName="UnitPrice" DisplayFormat="c" />
<DxGridDataColumn FieldName="Quantity" />
</Columns>
<GroupSummary>
<DxGridSummaryItem SummaryType="GridSummaryItemType.Count" FieldName="Country" />
<DxGridSummaryItem SummaryType="GridSummaryItemType.Max" FieldName="OrderDate" />
</GroupSummary>
</DxGrid>
@code {
object Data { get; set; }
NorthwindContext Northwind { get; set; }
protected override void OnInitialized() {
Northwind = NorthwindContextFactory.CreateDbContext();
Data = Northwind.Invoices
.ToList();
}
public void Dispose() {
Northwind?.Dispose();
}
}
For more information about summaries in the Grid component, refer to the following topic: Summary in Blazor Grid.