How to register the JavaScript function at Code-Behind

Use ResterStartupScript

this.Page.ClientScript.RegisterStartupScript(this.GetType(),"alert","<script>alert(‘hello’);</script>");

Use Literal control,

private void Button2_Click(object sender, System.EventArgs e)
{
    string str;
    str="<script language='JavaScript'>";       
    str+="selectRange()";
        str+="<script>";
    Literal1.Text=str;
}

Related posts:

http://forums.asp.net/p/981603/1257057.aspx#1257057 

Posted in: FAQ in Web Forms,Java Script