Зарегистрируйте любой нужный скрипт с помощью RegisterStartupScript
:
protected void Page_Load(object sender, EventArgs e)
{
// Define the name and type of the client scripts on the page.
String csname1 = "PopupScript";
Type cstype = this.GetType();
// Get a ClientScriptManager reference from the Page class.
ClientScriptManager cs = Page.ClientScript;
// Check to see if the startup script is already registered.
if (!cs.IsStartupScriptRegistered(cstype, csname1))
{
StringBuilder cstext1 = new StringBuilder();
cstext1.Append(@"$(document).ready(function() {
// Handler for .ready() called.
});");
cs.RegisterStartupScript(cstype, csname1, cstext1.ToString(), true);
}
}