private void addComplexTypeMenuItem_Click(object sender, System.EventArgs e)
 {
     DesignComplexType dct = new DesignComplexType(upnpService.GetComplexTypeList());
     if(dct.ShowDialog() == DialogResult.OK)
     {
         if(dct.ComplexType != null)
         {
             upnpService.AddComplexType(dct.ComplexType);
             this.updateUserInterface();
         }
     }
 }