GridControl.GroupSummarySource Property

Gets or sets the source from which the grid generates group summary items. This is a dependency property.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v25.1.dll

NuGet Package: DevExpress.Wpf.Grid.Core

Declaration

C#

public IEnumerable GroupSummarySource { get; set; }

VB.NET

Public Property GroupSummarySource As IEnumerable

Property Value

Type	Description
IEnumerable	The source from which the grid generates group summary items.

Remarks

You can define group summaries in a ViewModel and display them in the GridControl. To do this, follow the steps below:

1. Create a collection of group summaries in a ViewModel.

2. Specify a data template that generates summaries:

   XAML

   <Window.Resources>
       <DataTemplate x:Key="SummaryTemplate">
           <ContentControl>
               <dxg:GridSummaryItem FieldName="{Binding Path=(dxci:DependencyObjectExtensions.DataContext).FieldName, RelativeSource={RelativeSource Self}}"
                                    SummaryType="{Binding Path=(dxci:DependencyObjectExtensions.DataContext).Type, RelativeSource={RelativeSource Self}, Converter={StaticResource SummaryTypeConverter}}"/>
           </ContentControl>
       </DataTemplate>
   </Window.Resources>
   

3. Assign the group summary collection to the GroupSummarySource property and the summary template to the GroupSummaryGeneratorTemplate property:

   XAML

   <dxg:GridControl ...
                    GroupSummarySource="{Binding GroupSummary}"
                    GroupSummaryGeneratorTemplate="{StaticResource SummaryTemplate}"/>
   

Refer to the following help topic for more information: How to: Bind the Grid to Total and Group Summaries.