ASPxSummaryItemBase.SummaryType Property

Gets or sets the aggregate function type.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.2.dll

Declaration

C#

[DefaultValue(SummaryItemType.None)]
public SummaryItemType SummaryType { get; set; }

VB.NET

<DefaultValue(SummaryItemType.None)>
Public Property SummaryType As SummaryItemType

Property Value

Type	Default	Description
SummaryItemType	None	One of the SummaryItemType enumeration values.

Available values:

Name	Description
Sum	The sum of all values in a column.
Min	The minimum value in a column.
Max	The maximum value in a column.
Count	The record count.
Average	The average value of a column.
Custom	Specifies whether calculations should be performed manually using a specially designed event.
None	Disables summary value calculation.

Remarks

There are five predefined aggregate functions. These are: Sum, Min, Max, Average, Count. To implement your own aggregate function, set the SummaryType property to Custom, and handle the ASPxGridBase.CustomSummaryCalculate event.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the SummaryType property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

asp-net-web-forms-grid-create-report-based-on-grid-layout/CS/WebApplication1/ReportHelper.cs#L73

label.Summary.FormatString = item.DisplayFormat;
label.Summary.Func = GetSummaryFunc(item.SummaryType);
footerBand.Controls.Add(label);

asp-net-mvc-grid-create-report-based-on-grid-layout/CS/E4755/Models/MVCxGridViewState.cs#L92

    DisplayFormat = item.DisplayFormat;
    SummaryType = item.SummaryType;
}

VB.NET

asp-net-web-forms-grid-create-report-based-on-grid-layout/VB/WebApplication1/ReportHelper.vb#L75

label.Summary.FormatString = item.DisplayFormat
label.Summary.Func = GetSummaryFunc(item.SummaryType)
footerBand.Controls.Add(label)

asp-net-mvc-grid-create-report-based-on-grid-layout/VB/E4755/Models/MVCxGridViewState.vb#L186

    DisplayFormat = item.DisplayFormat
    SummaryType = item.SummaryType
End Sub