GridColumn.GroupIndex Property

Gets or sets the column’s position among grouping columns.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v23.2.dll

NuGet Package: DevExpress.Wpf.Grid.Core

Declaration

C#

[Browsable(false)]
public int GroupIndex { get; set; }

VB.NET

<Browsable(False)>
Public Property GroupIndex As Integer

Property Value

Type	Description
Int32	The column’s position among grouping columns. -1 if a View is not grouped by this column.

Remarks

To group data against a column, set its GroupIndex property to a non-negative value.

If you group data against multiple columns, the GroupIndex property specifies the group level. In the following code sample, the City column has the 1 group level, and the Visits column has the 2 group level.

MainWindow.xaml

<dxg:GridColumn FieldName="City" IsSmart="True" GroupIndex="0"/>
...
<dxg:GridColumn FieldName="Visits" IsSmart="True" GroupIndex="1"/>

Related GitHub Examples

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

XAML

wpf-data-grid-process-frequent-data-updates/CS/ChunkAndOptSummariesExample/MainWindow.xaml#L27

<dxg:GridColumn FieldName="Name"/>
<dxg:GridColumn FieldName="Group" GroupIndex="0"/>
<dxg:GridColumn FieldName="Sensor1"/>

how-to-select-all-group-subitems-when-a-group-row-is-clicked-wpf-e4617/CS/GridGroupSelect/MainWindow.xaml#L11

<dxg:GridColumn FieldName="Id"/>
<dxg:GridColumn FieldName="Group" GroupIndex="0"/>
<dxg:GridColumn FieldName="Name" GroupIndex="1"/>

wpf-data-grid-implement-custom-grouping/CS/CustomGrouping_CodeBehind/MainWindow.xaml#L15

<dxg:GridColumn FieldName="LastName" />
<dxg:GridColumn FieldName="UnitPrice" SortMode="Custom" GroupIndex="0">
    <dxg:GridColumn.EditSettings>

wpf-data-grid-implement-custom-sorting/CS/CustomSorting_CodeBehind/MainWindow.xaml#L11

<dxg:GridControl.Columns>
    <dxg:GridColumn FieldName="Day" GroupIndex="0" SortMode="Custom"/>
    <dxg:GridColumn FieldName="Employee"/>

wpf-data-grid-display-group-summaries/CS/DisplayGroupSummaries_CodeBehind/MainWindow.xaml#L15

<dxg:GridColumn FieldName="RegistrationDate" />
<dxg:GridColumn FieldName="Married" GroupIndex="0" SortOrder="Ascending" />
<dxg:GridColumn FieldName="Age" />