C# Access Method of Form1 on Form2

Question

I have 2 Forms in my project. Form1 is the main Form. There I have a button to open Form2, a ListView and a method to call a url and feed the ListView with data it gets from

Answer 1

Define event on Form2 and raise it when url entered:

public class Form2 : Form
{
   public event EventHandler UrlEntered;

   private void ButtonOK_Click(object sender, EventArgs e)
   {
       if (UrlEntered != null)
           UrlEntered(this, EventArgs.Empty);
   }

   public string Url { get { return urlTextBox.Text; } }
}

Subscribe to that event on Form1:

Form2 form2 = new Form2()
form2.UrlEntered += Form2_UrlEntered;
form2.Show();

Handle this event:

private void Form2_UrlEntered(object sender, EventArgs e)
{
   Form2 form2 = (Form2)sender;
   string url = form2.Url;
   // use it
}

---

Also you can define event of type EventHandler with custom event argument, which will provide entered url to subscribers.