Change currently image?

[C# Programming]

First i had this:
private void pbEdit_OnMouseEnter(object sender, EventArgs e)
{
pbTextEdit.Image = Image.FromFile("C:/data/edit_color.gif");
}

Now I wanna use 1 function for different pictureboxes:
My code i was thinking of but didn't workhttp://www.barakasoft.com/script/Forums/Images/smiley_frown.gif
this.Image = Image.FromFile("C:/data/edit_color.gif");

Dennis,