above link is my design page. I need to link two datatable to my rdlc report... but when i create two datatable and link correponding field it show some error.... " Error2The Value expression for the text box 'Textbox3' refers to the field 'AcHead'. Report item expressions can only refer to fields within the current dataset scope or, if inside an aggregate, the specified dataset scope. " i searched on net but very less result showing my requirments...any body have any idea...