Question

I have a array of pictureboxes like this:

PictureBox[] pb = new PictureBox[71]
{
pictureBox1,pictureBox2,pictureBox3,...etc
};

and I know how to assign a event to a single object,

private void pictureBox1_MouseHover(object sender, EventArgs e)
{
    pictureBox1.BackColor = Color.Red;
}

but how can I assign this array to 1 event handler, the final result should be when I’m hovering 1 of the 71 boxes the .backColor property, instead of making 71 handlers for each picturebox.

Answer 1

Subscribe the event handlers like so:

foreach (var p in pb)
{
    p.MouseHover += new EventHandler(pictureBox1_MouseHover);
}

And set the BackColor like so:

private void pictureBox1_MouseHover(object sender, EventArgs e)
{
    ((PictureBox)sender).BackColor = Color.Red;
}

sender is the actual PictureBox that fired the event.