Reassign DataSource to GridGroupingControl

this.gridGroupingControl1.DataSource = null; this.oleDbDataAdapter1.Fill(this.dataSet11); this.gridGroupingControl1.DataSource = dataSet11.orders; It took very long time when I perform this operation the second time. The data volume is big. It looks like the gridgroupingcontrol didn''t drop earlier data. So it took a while for the screen to come up. Please tell me the way to make this operation faster. Thanks, Albert

Try using this code to see if it performs better. this.gridGroupingControl1.DataSource = null; this.gridGroupingControl1.DataMember = null; this.gridGroupingControl1.ResetTableDescriptor();