P>        private void ColorChange(System.Windows.Forms.TextBox Textbox, bool Wert)
P>        {
P>            if (Wert)
P>                Textbox.BackColor = System.Drawing.Color.Lime;
P>            else
P>                Textbox.BackColor = System.Drawing.Color.Silver;
P>            Application.DoEvents();
P>        }
P>