windowsforms-devexpress-dot-xtragrid-dot-views-dot-grid-dot-gridview-b074b1c5.md
Collapses all groups.
Namespace : DevExpress.XtraGrid.Views.Grid
Assembly : DevExpress.XtraGrid.v25.2.dll
NuGet Packages : DevExpress.Win.Grid, DevExpress.Win.Navigation
public virtual void CollapseAllGroups()
Public Overridable Sub CollapseAllGroups
The method collapses all group rows within the current View. Only the top level group rows are then visible. End-users can do this also by using the group panel context menu.
If you need to collapse a particular group row via code, use the GridView.SetRowExpanded method.
Note
Detail pattern Views do not contain data and they are never displayed within XtraGrid. So, the CollapseAllGroups member must not be invoked for these Views. The CollapseAllGroups member can only be used with Views that display real data within the Grid Control. Use the following methods to access these Views with which an end user interacts at runtime.
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the CollapseAllGroups() 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.
winforms-preserve-grid-state-on-refresh/CS/RefreshHelperClass.cs#L151
try {
view.CollapseAllGroups();
foreach(RowInfo info in list)
winforms-preserve-grid-state-on-refresh/VB/RefreshHelperClass.vb#L160
Try
view.CollapseAllGroups()
For Each info As RowInfo In list
See Also