LoadAsyncCompletedEventArgs Class

Summary

Data for the LoadDocumentAsyncOptions.Completed event.

Syntax

C++/CLI

Python

public class LoadAsyncCompletedEventArgs : AsyncCompletedEventArgs

public ref class LoadAsyncCompletedEventArgs : System::ComponentModel::AsyncCompletedEventArgs

class LoadAsyncCompletedEventArgs(AsyncCompletedEventArgs):

Remarks

LoadAsyncCompletedEventArgs derives from System.ComponentModel.AsyncCompletedEventArgs and contains the following members:

Member	Description
System.ComponentModel.AsyncCompletedEventArgs.Cancelled	true if the user has aborted the current operation, false otherwise..
System.ComponentModel.AsyncCompletedEventArgs.UserState	The same value originally set by the user in LoadDocumentAsyncOptions.UserState.
System.ComponentModel.AsyncCompletedEventArgs.Error	The error object thrown if any.
Uri	The location of the document loaded. This is the uri value passed to LoadFromUriAsync
Document	The result Document object if the load operation was successful, null otherwise

Example

Java

using Leadtools; 
using Leadtools.Caching; 
using Leadtools.Document; 
 
 
public void DocumentFactoryLoadFromUriAsyncExample() 
{ 
   AutoResetEvent finished = null; 
   EventHandler<LoadAsyncCompletedEventArgs> completed = null; 
   // LoadAsyncProgressEventArgs reference 
   EventHandler<LoadAsyncProgressEventArgs> progress = null; 
 
   completed = (sender, e) => 
   { 
      //Assert((int)e.UserState == 1); 
 
      if (e.Cancelled) 
         Console.WriteLine("Canceled"); 
      if (e.Error != null) 
         Console.WriteLine("Error:" + e.Error.Message); 
      if (e.Document == null) 
         Console.WriteLine("Document is null"); 
 
      var thisOptions = sender as LoadDocumentAsyncOptions; 
      thisOptions.Completed -= completed; 
 
      if (e.Document != null) 
      { 
         PrintOutDocumentInfo(e.Document); 
      } 
 
      finished.Set(); 
      Console.WriteLine("Done"); 
   }; 
 
   progress = (sender, f) => 
   { 
      Console.WriteLine(f.BytesReceived); 
      Console.WriteLine(f.IsCancelPending); 
      Console.WriteLine(f.TotalBytesToReceive); 
 
      var thisOptions = sender as LoadDocumentAsyncOptions; 
      thisOptions.Progress -= progress; 
   }; 
 
   var options = new LoadDocumentAsyncOptions(); 
   options.Completed += completed; 
 
   finished = new AutoResetEvent(false); 
   DocumentFactory.LoadFromUriAsync(new Uri("http://localhost/Leadtools.pdf"), options); 
   finished.WaitOne(); 
}

 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.IOException; 
import java.io.InputStream; 
import java.net.URI; 
import java.net.URISyntaxException; 
import java.util.Calendar; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.caching.*; 
import leadtools.document.*; 
 
 
// LOAD FROM URI ASYNC DOES NOT EXIST

Requirements

Target Platforms

Reference

LoadAsyncCompletedEventArgs Members

Leadtools.Document Namespace

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Help Version 23.0.2024.2.29