public void SetReadOnly()
 {
     foreach (var TextBox in Controls.OfType <TextBox>())
     {
         TextBox.ReadOnly = true;
     }
     ButSave.Hide();
 }
        public void SetReadOnly()
        {
            foreach (var TextBox in Controls.OfType <TextBox>())
            {
                TextBox.ReadOnly = true;
            }
            foreach (var ComboBox in Controls.OfType <ComboBox>())
            {
                ComboBox.Enabled = false;
            }

            ButSave.Hide();
        }