Question

For the button, how to detect whether it is ctrl + click a button, in the click event handler?
I am using VS 2010 using C#.

Answer 1

Are we talking about winforms, wpf or asp application? I will make a quick assumption that it’s winforms, so here goes:

Form Form1;
button.Click += click;

private void click(object s, EventArgs e)
{
    if(Form1.ModifierKeys == Keys.Control)
    ... // Whatever you need here
}