Windows Forms - get Text value from object of type button

Question

I have a Windows form named Form1 and panel within this form named panel1. I use the panel only to place buttons there so that I can group them and

Answer 1

    private void HandleClick(object sender, EventArgs e)
    {
        var btn = sender as Button;
        if (btn != null)
        {
            MessageBox.Show(btn.Text);
        }
    }

Answer 2

You need to cast sender to the Button class so you can access its properties:

Button b = (Button)sender;
MessageBox.Show(b.Text);

Answer 3

One option is to cast the object to a Button, but rather than doing the casting you can change how the event handler is assigned so that you don't need to cast in the first place:

foreach (var button in panel1.Controls.OfType<Button>())
{
    button.Click += (_,args)=> HandleClick(button, args);
}

Then just change the signature of HandleClick to:

private void HandleClick(Button button, EventArgs e);