private void btnPreview_Click(object sender, EventArgs e)
{
frmPreview frm = new frmPreview();
frm.ImageFile = pictureBox1.Image;
frm.Show();
}
private void btnPreview_Click(object sender, EventArgs e)
{
foreach (Form frmCheck in MdiChildren)
{
if (frmCheck.GetType() == typeof(frmPreview))
{
frmCheck.Activate();
return;
}
}
Form frmChild = new frmPreview
{
MdiParent = this
};
frmChild.Show();
}