In my application,there is one copy button,Onclicking of it selected row should copy as it,in row columns are start date and end date (infragistic calender control),other textboxes,for copying row,oncheckedchange event of checkbox ,i'm taking all values in datatable and then after onclick of copy button i am taking previous DataTable,Now adding new row within table with values same, in DataTable both rows value showing correctly,even if start date and end date, But when i am going to bind this DataTable to GridView at that time start date and End Date are not binding to this infragistic control,it is showing null values