How to link buttons in visual studio with c#?

Question

I just want it so that whenever I click on like button one, like button two should be clicked as well.

So how can I do it?

Actually I have a windows application form and have inserted a web browser in the form. The form URL is some facebook page link. So I want to like that page with my own created button (button 1). Please guide me how can I do it using C#

This is an image which can explain my problem

Answer 1

Consider the following Form with only a webbrowser in the background and a simple blue colored button.

In the OnLoad() function, we navigate to the facebook page. When the "Like" button is pressed, all HTML buttons are searched for the one whose class -attribute contains "PageLikeButton". When that like button is found, the click() function is executed upon it.

using System;
using System.Windows.Forms;

namespace FacebookLiker
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //Go to that link
            webBrowser1.Url = new Uri("https://www.facebook.com/haadischool/?fref=ts");

        }

        private void btnLike_Click(object sender, EventArgs e)
        {
            //Scan the facebook page for a like button

            foreach(HtmlElement button in webBrowser1.Document.GetElementsByTagName("button"))
            {
                //Is this the like button?
                if (button.GetAttribute("className").Contains("PageLikeButton"))
                {
                    //yes, simulate the click!
                    button.InvokeMember("click");
                }
            }
        }
    }
}

As you can see, when I visit the page without having liked it:

And after I click the Form's "Like" button:

Ofcourse, this simple demo should be enhanced to handle the cases where there is no "Like"-button at all, you can do that by hooking the DocumentCompleted event of the WebBrowser , then searching for a "Like"-Button there. You can also detect wether the page was already liked. In that case, the class attribute you'll be searching for will be "PageLikedButton" (past-tense of "like").