Aborts the load operation.
public bool IsCancelPending {get; set;}
public:
property bool IsCancelPending
{
bool get()
void set(bool value)
}
IsCancelPending # get and set (LoadAsyncProgressEventArgs)
true to abort the current load operation; otherwise, false. Default value is false.
Progress can be used to show a progress bar indicator for the user while the factory is loading a document. In this scenario, it is sometimes preferable to allow the user to abort the load operation (for example, through a Cancel button in the UI). Set IsCancelPending to true to gracefully abort load thread and cancel the load operation.
After the operation is aborted, the value of System.ComponentModel.AsyncCompletedEventArgs.Cancelled of the LoadDocumentAsyncOptions.Completed event data will be set to true and the value of Document will be null.
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
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