private void LoadData() { ColumnData = GetData(); Main_GridControl.DataSource = ColumnData; var data = ColumnData.GroupBy(o => o.TableName).Select(o => new ColumnInfoGroup { TableName = o.Key, ColumnCount = o.Count() }).ToList(); ColumnDataGroup = new BindingList <ColumnInfoGroup>(data); Group_GridControl.DataSource = ColumnDataGroup; }