I have the following problem: I have "WebForm1". In this WebForm I have some TextBoxex, DropDOwnList, and 3 buttons. In one of the TextBox the user needs to type in a codes product. Beside the TextBox I added a Button in which when the user clicks it I want to open another WebForm or something in which will open a DataGrid with the products that the user can select. And when he select the product the code goes into the TextBox and closes the other WebForm or whatever I make. How can I solve this problem ??? I tried using "UserControl" but I had some problem with it. In fact I addded two questions to see if someone could help me but no one didn´t answer. What is the best way of solving this problem ???? If someone help me, I´ll cancel the other question and add transfer to this question.