Hello Experts, I wanted to filter a data where when I click on a DataGrid in FormA, FormB with DataGrid will only show the corresponding data. The passing Key is CustomerID. To be more clear: Form Customer with DataGrid1(which display all Customer list in CustTbl) CustID CustName 1 ABC 2 DEF When I click on the DataGrid1 in FormCustomer, it will open a new Form Invoice(with DataGrid) where it will only display the information related to the Custmer,where the Primary Key is the CustID. I get the Form Invoice open but my Datagrid display all records. Thanks all.