在C＃中捕获鼠标单击事件

Question

I am trying to create a simple windows form applicaiton in c# which will count the right left clicks from the mouse event. I have copy the following code which detect the click event:

private void mouseClick(object sender, MouseEventArgs e)
{
    if (e.Button == MouseButtons.Right)
    {
        Trace.WriteLine("Mouse clicked");
    }
}

And in Form method I add this.MouseClick += mouseClick; . My issue is that this function activates every time a click is performed whether is right or left click. Why is that?

Answer 1

It is by design. MouseClick event is raised on every click - doesn't matter was it caused by left or right button.

In order to distinguish left button from right one in this event handler - you have to check e.Button property exactly as it was done in your code:

if (e.Button == MouseButtons.Right)