/// <summary>
 ///
 /// </summary>
 /// <param name="completeHandler"></param>
 /// <param name="errorHandler"></param>
 public BackgroundRequest(BackgroundRequestComplete completeHandler, BackgroundRequestErrored errorHandler)
     : this(completeHandler)
 {
     Errored += errorHandler;
 }
 public BackgroundRequest(BackgroundRequestComplete handler)
 {
     Complete += handler;
 }
 public BackgroundRequest(BackgroundRequestComplete handler)
 {
     Complete += handler;
 }