Event that occurs one or more times while the factory is loading the document to indicate the current progress.
public event EventHandler<LoadAsyncProgressEventArgs> Progress
public:
event EventHandler<Leadtools::Documents::LoadAsyncProgressEventArgs^>^ Progress
def Progress(sender,e): # sender: LoadDocumentAsyncOptions e: LoadAsyncProgressEventArgs
Progress will occur one or more times while the document is being loaded and it can be used to show a progress bar indicator for the user (and optionally, support for aborting the load). Progress uses the LoadAsyncProgressEventArgs event data class that is populated with the following for each "chunk":
Member | Value |
---|---|
System.ComponentModel.ProgressChangedEventArgs.ProgressPercentage |
Current progress percentage. This value goes from 0 to 100.. |
The same value originally set by the user in LoadDocumentAsyncOptions.UserState. |
|
The location of the document being loaded. This is the uri value passed to LoadFromUriAsync |
|
Number of bytes received during this chunk of the operation. |
|
Total number of bytes received so far for the whole load operation. |
|
Can be used to abort the load operation. |
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
Parameter | Type | Description |
---|---|---|
sender | object | The source of the event. |
e | LoadAsyncProgressEventArgs | The event data. |
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