GridView.ExpandAllGroups() Method

Expands all groups.

Namespace: DevExpress.XtraGrid.Views.Grid

Assembly: DevExpress.XtraGrid.v18.2.dll

Declaration

C#

public virtual void ExpandAllGroups()

VB.NET

Public Overridable Sub ExpandAllGroups

Remarks

The ExpandAllGroups method expands all group rows within the current View. All data rows become visible as a result. End-users can also do this by using the group panel context menu.

Individual group rows can be expanded using the GridView.SetRowExpanded method.

Note

Detail pattern Views do not contain data and they are never displayed within XtraGrid. So, the ExpandAllGroups member must not be invoked for these Views. The ExpandAllGroups member can only be used with real Views that are displayed within the Grid Control. The real Views with which an end-user interacts at runtime can be accessed using the following methods.

• GridControl.MainView - returns the top most View in a grid;
• GridControl.FocusedView - returns the focused View;
• GridControl.DefaultView - returns the currently maximized View;
• the sender parameter of View specific events;
• GridView.GetDetailView - returns a detail clone View for a specific master row.

Related GitHub Examples

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

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#

how-to-customize-the-information-shown-on-the-group-row-e794/CS/WindowsApplication1/Form1.cs#L19

gridView1.Columns["Category"].GroupIndex = 0;
gridView1.ExpandAllGroups();
gridView1.GroupSummary.Add(SummaryItemType.Count, "Product Name", null);

how-to-display-group-footers-even-if-there-are-no-group-summaries-displayed-e2845/CS/Q303243/Form1.cs#L25

gridView1.Columns["Name"].GroupIndex = 0;
gridView1.ExpandAllGroups();
gridView1.GroupSummary.Add(DevExpress.Data.SummaryItemType.Sum, "Payment", gridView1.Columns["Payment"]);

how-to-implement-a-radio-group-to-provide-a-single-choice-for-every-group-the-same-index-e1247/CS/Form1.cs#L209

    gridControl1.DataSource = myTable;
    gridView1.ExpandAllGroups();
}

how-to-keep-all-the-groups-expanded-e828/CS/KeepGroupsExpanded/Form1.cs#L20

gridView1.ExpandAllGroups();
gridView1.OptionsMenu.EnableGroupPanelMenu = false;

how-to-provide-a-custom-datasource-for-the-print-preview-form-options-dialog-e3589/CS/CustomPrintPreview/Grid/CustomGridViewPrinting.cs#L150

}
CurrentView.ExpandAllGroups();
CurrentView.FocusedRowHandle = -99;

VB.NET

how-to-customize-the-information-shown-on-the-group-row-e794/VB/WindowsApplication1/Form1.vb#L18

gridView1.Columns("Category").GroupIndex = 0
gridView1.ExpandAllGroups()
gridView1.GroupSummary.Add(SummaryItemType.Count, "Product Name", Nothing)

how-to-display-group-footers-even-if-there-are-no-group-summaries-displayed-e2845/VB/Q303243/Form1.vb#L28

gridView1.Columns("Name").GroupIndex = 0
gridView1.ExpandAllGroups()
gridView1.GroupSummary.Add(DevExpress.Data.SummaryItemType.Sum, "Payment", gridView1.Columns("Payment"))

how-to-implement-a-radio-group-to-provide-a-single-choice-for-every-group-the-same-index-e1247/VB/Form1.vb#L192

    gridControl1.DataSource = myTable
    gridView1.ExpandAllGroups()
End Sub

how-to-keep-all-the-groups-expanded-e828/VB/KeepGroupsExpanded/Form1.vb#L22

gridView1.ExpandAllGroups()
gridView1.OptionsMenu.EnableGroupPanelMenu = False

how-to-provide-a-custom-datasource-for-the-print-preview-form-options-dialog-e3589/VB/CustomPrintPreview/Grid/CustomGridViewPrinting.vb#L168

End If
CurrentView.ExpandAllGroups()
CurrentView.FocusedRowHandle = -99