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