后台C#调用JS出错

Question

源代码
 protected void Submit_Click(object sender, EventArgs e)
        {
            if (MyClass.ValidateUser(this.TxtBoxName.Text, this.TxtBoxPwd.Text) == true)
                Response.Redirect("WebForm1.aspx");
            else
                Response.Write("<script type='text/javascript'>alter('No User Exist!')</script>");
        }
当MyClass.ValidateUser(this.TxtBoxName.Text, this.TxtBoxPwd.Text) == false时，此句提示出错
alter('No User Exist!')<错误提示
Microsoft JScript runtime error: Object expected究竟哪错了，请赐教！

Answer 1

Response.Write(" <script type='text/javascript'>alter('No User Exist!') </script>");
Response.Write(" <script type='text/javascript'>alert('No User Exist!') </script>");

Answer 2

是alert 不是alter，看清楚
Response.Write(" <script type='text/javascript'>alert('No User Exist!'); </script>");