hello again see,my problem exactly is that my program without putting the ScriptManagerProxy hasn't any problem and works properly.but with it doesn't work. "doesn't work" is in other word,not that my program has an error,no,only works bad.(i haven't a syntax error while have a runtime error only and only for the ScriptManagerProxy tag ) for more explanations: in the code below,if we haven't ScriptManagerProxy tag in the page,we can to enter the values in the fiels and press the button to sends the values.but if we put ScriptManagerProxy tag in the page,the program isn't able to send the values because says FileUpload1.HasFile is false (fileupload1 is empty)then the if condition isn't true therefore my Query doesn't run.i hope to explain properly. \* \*

thank you very much [image: ldmkrwoalku2kj3dll8.jpg] I say condolence for the suffering of martyrdom the prophet Mohammad and the Imam Hasan and the Imam Reza to all of the Muslims.:rose::rose:

Please read http://www.codeproject.com/Messages/1278599/How-to-get-an-answer-to-your-question.aspx[^]. Veni, vidi, abiit domum

I have used many time auto complete Extender. I check out your code behind file. [WebMethod] public static string[] City(string prefixText, int count, string contextKey) { DataTable dt = new DataTable(); dt = Bal\_BindingData.\_city(prefixText); //_city is dataTable type function with the string type parameter.just add the String Contextkey in your GetCompletionList method. string\[\] movies = new string\[dt.Rows.Count\]; for (int i = 0; i < dt.Rows.Count; i++) { movies\[i\] = dt.Rows\[i\]\["City"\].ToString(); } return movies; } i think you forgot string Contextkey Parameter in GetCompletionList method. don't confused my with code i have used three tire technique. I hope your problem has been solved. :laugh: jsb