How to change behavior when changing the WinForms GridGroupingControl?

Grouping

While modifying the content of the grouped records in the WinForms GridGroupingControl, the groups are not getting collapsed in the version 13.1.0.X (2015 Volume 1) of the Essential Studio.

Solution

From the 13.1.0.X version of Essential Studio, the default behavior is that when a group is added or modified, it does not collapse all the other groups.

To collapse the entire group, except the distinct group created by adding or modifying the record, set the TableDirty property value as true in SourceListListChanged event. When a table is marked dirty, any subsequent access to child elements and the resulting Syncfusion.Grouping.Element.EnsureInitialized(System.Object) call triggers re-categorization of all records in the table.

C#

//Hook the event in Form to set the table value as dirty.
this.gridGroupingControl1.SourceListListChanged += new TableListChangedEventHandler(gridGroupingControl1_SourceListListChanged);

void gridGroupingControl1_SourceListListChanged(object sender, TableListChangedEventArgs e)
{
    //Set the table as dirty
    e.Table.TableDirty = true;
}

'Hook the event in Form to set the table value as dirty.
AddHandler Me.gridGroupingControl1.SourceListListChanged, AddressOf gridGroupingControl1_SourceListListChanged

Private Sub gridGroupingControl1_SourceListListChanged(ByVal sender As Object, ByVal e As TableListChangedEventArgs)
   'Set the table as dirty
   e.Table.TableDirty = True
End Sub

Figure 1: New group in table