use session to transfer the dropdown-list'value of Module A. For instance: //Save dropdownlist.text in session when the dropdownlist's selectedindex has changed. Page.Session["valuea"] = dropdownlist.text; //Read dropdownlist's value from session string a = Page.Session["valuea"].ToString(); :-D

Dear Javier, Yes, Actually I need a POST Method. I must transfer the MerchantID and Amount to a Payment Gateway and it needs the parameters being passed with POST Method. Regards, Samy

Dear Mihir, You are right. I checked the Response.WriteFile with a path and also sent the Header and MIME type and it worked perfect. Thanks a lot, Samy

Hi, I am so sorry. Here si the error. 'contact' is an undeclared namespace. Line 8, position 2. As It shows the namespace is not defined. But the XML is generated by a server and I can't change the strcuture. Therefore How can I bypass this error checking. Regards, Samy