Cannot convert from '.Controllers.AccountController' to 'System.Web.UI.Page' when trying to make “success” message

Question

After pressing "submit" button, I need to have success message shown. I'm trying to do it with this line :

ScriptManager.RegisterStartupScript(this, this.GetType(), "temp", "Success", false);

The error is :

Error CS1503 Argument 1: cannot convert from 'WebApplication2.Controllers.AccountController' to 'System.Web.UI.Page'

I've tried looking similar topics, changing 'this' to 'Page' and so on - no luck. Any help would be appreciated.

Answer 1

Problem was solved using

 TempData["AlertMessage"] = "Registration was successful";
in controller

and

@{
    var message = TempData["AlertMessage"] ?? string.Empty;
}


<script type="text/javascript">
    var message = '@message';
    if(message)
        alert(message);
</script>

in views.