ASPxGridView.GroupSummary Property

Provides access to group summary items.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.1.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(null)]
public ASPxSummaryItemCollection GroupSummary { get; }

VB.NET

<DefaultValue(Nothing)>
Public ReadOnly Property GroupSummary As ASPxSummaryItemCollection

Property Value

Type	Default	Description
ASPxSummaryItemCollection	null	An ASPxSummaryItemCollection object that represents the collection of group summary items.

Remarks

Group summaries are displayed within group rows when data grouping is applied. Summary items are represented by the ASPxSummaryItem objects and are stored within the GroupSummary collection. This collection provides methods and properties that allow you to add, remove and access summary items.

Note

In server mode, summary cannot be calculated for unbound columns whose values calculated via events (see ASPxGridView.CustomUnboundColumnData). Only columns with unbound expressions (see GridViewDataColumn.UnboundExpression) support summary calculation.

Concept

Data Summaries

Example

In code:

C#

ASPxSummaryItem groupSummary = new ASPxSummaryItem();
groupSummary.FieldName = "Budget";
groupSummary.SummaryType = SummaryItemType.Max;
ASPxGridView1.GroupSummary.Add(groupSummary);

VB.NET

Dim groupSummary As ASPxSummaryItem = New ASPxSummaryItem()
groupSummary.FieldName = "Budget"
groupSummary.SummaryType = SummaryItemType.Max
ASPxGridView1.GroupSummary.Add(groupSummary)

In markup:

ASPX

<dx:ASPxGridView ID="ASPxGridView1" runat="server" ...>
    <!-- ... -->
    <GroupSummary>
        <dx:ASPxSummaryItem FieldName="UnitPrice" ShowInGroupFooterColumn="UnitPrice"
            SummaryType="Count" />
    </GroupSummary>
</dx:ASPxGridView>

Online Example

View Example: How to use group footer and footer templates to customize group and total summaries