private void OnremoveAttachmentOperationCompleted(object arg) {
if ((this.removeAttachmentCompleted != null)) {
System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg));
this.removeAttachmentCompleted(this, new removeAttachmentCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState));
}
}