C# Webbrowser Onclick Javascript event handling

Question

I got this code from HTML:

<div id="login-buttons">
    <div id="js_login_button">
        <a href="#" onclick="$('#login_form').submit()" class="login_button">
        <span class="button_left"></span>
        <span class="button_middle">Login</span>
        <span class="button_right"></span>
        </a>
    </div>          
</div>

Now I need a C# code to activate / perform a click into the webpage (which is loaded into a webBrowser )

//webBrowser1.Document.InvokeScript("$('#login_form').submit()");

This doesn't work for me, I tried and searched a lot but I can't find anything. I CANNOT add a function because It's from a website.

Please help me :)

Note: If you need more information from which website I want to make an auto login system. Just ask :)

Answer 1

InvokeScript executes a function by name, rather than evaluates the code. Define a function by name that does what you want.

<script>
   function foo () {
      $('#login_form').submit()
   };
</script>

In the C# code, call the function by name

webBrowser1.Document.InvokeScript("foo");

There's more information on the documentation which covers how to pass parameters and receive results.