Javascript problem with devexpress grid custom button

        StringBuilder scriptFunc开发者_StackOverflowtion = new StringBuilder();
        scriptFunction.Append("<script language='javascript'>");
        scriptFunction.Append("alert('de')");
        scriptFunction.Append("</script>");
        ClientScript.RegisterStartupScript(GetType(), "alert", scriptFunction.ToString());

This is my code and it can run on page_load but i want it to run in my devexpress grid's CustomButtonCallback event. There is no error but it dont show an alert too. Do you have any idea?

KR,

Çağın

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RegisterStartupScript registers script to run after postback. DevExpress controls use callbacks to interact with server. So, no postback - no script running.

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CustomButtonClick="function(s, e) { var ID = e.buttonID }" it returns button's id.