public void GetFoldersByFileMasterIdAsync(long fileMasterId, object userState) {
if ((this.GetFoldersByFileMasterIdOperationCompleted == null)) {
this.GetFoldersByFileMasterIdOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetFoldersByFileMasterIdOperationCompleted);
}
this.InvokeAsync("GetFoldersByFileMasterId", new object[] {
fileMasterId}, this.GetFoldersByFileMasterIdOperationCompleted, userState);
}