GGC Rebind is not working

I am working on GGC Rebind. It is not working properly. After the rebind Group records are not expanding. ( + button turn to - button it is not showing the child records ).

I created the same issue on the existing Sampels provided by Syncfusion. I am suing the latest 5.2.0.25 version.

Here is my rebind method.
GridGroupingControl grid = this.gridGroupingControl1;

grid.SuspendLayout();
GridTableDescriptor td = grid.TableDescriptor;
gridGroupingControl1.ResetTableDescriptor();
gridGroupingControl1.DataSource = null;
gridGroupingControl1.DataMember = null;
td = grid.TableDescriptor;
td.AllowEdit = true;
td.ResetChildGroupOptions();
td.Reset();
td.ResetGroupedColumns();
td.ResetRelations();
BindGrid();
grid.ResumeLayout();



grid.zip

Hi Sendilraj,

Currently we are analyzing the sample. We will update you within one business day.

Thank you for being patient.

Best regards,
Jeba.