private void EditTextbox_Validated(object sender, EventArgs e)
{
MDIChild mc = this.ActiveMdiChild as MDIChild;
if (mc == null ||
mc.DesignTab != DesignTabs.Design || mc.DrawCtl.SelectedCount != 1 ||
mc.Editor == null)
return;
mc.Editor.SetSelectedText(ctlEditTextbox.Text);
SetProperties(mc);
}