Create label Click in InputBox

Question

I have a function, private void sentEmail() in Form1. And I want to use that function to a label in a InputBox.

The InputBox that I use is this: http://www.csharp-examples.net/inputbox/

I creat a new class and add the code of InputBox.

In InputBox I creat the label:

Label label2 = new Label();
label2.Text = mesaj;
label2.Cursor = Cursors.Hand;

Now I need to make this: when the InputBox will appears, when I will click on label2, to use the function from Form1. The label2 is a text for recive the password, function work, but I need to use the function in InputBox but I don't know how to do this. I think that I need to creat a new Handler, but I don't know how.

Answer 1

Change the InputBox method to

public static DialogResult InputBox(string title, string promptText, ref string value, Action labelClickCallback)

and add that callback to the Click event.

Label label2 = new Label();
label2.Text = mesaj;
label2.Cursor = Cursors.Hand;
label2.Click += (s, e) => labelClickCallback(); // Create a new event handler

When calling the InputBox method, you can now pass a method to the method which will be called when the user clicks on the label. Call InputBox like this:

InputBox("Title", "Text", ref result, sentEmail);

Answer 2

Label has a Click event.

label2.Click += delegate {
    form1.sendEmail();
}

Answer 3

I suggest you have the SendMail() method in an other class, not in Form1, you may want to use it somewhere else.

public class MailController
{
    public void SendEmail()
    {
        //Code
    }
}

And in your form, you just call it after instantiate the class containing it

//Your form containing the InputBox
private void Form1_Load(object sender, EventArgs e)
{
    Label label2 = new Label();
    label2.Text = mesaj;
    label2.Cursor = Cursors.Hand;

    label2.Click += OnLabelClick;
}

private void OnLabelClick(object sender, EventArgs e)
{
    MailController controller = new MailController();
    controller.SendMail();
}