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DownloadStringCompletedEventArgs Class

Provides data for the DownloadStringCompleted event.

Namespace: System.Net
Assembly: System (in system.dll)

'Declaration
Public Class DownloadStringCompletedEventArgs
	Inherits AsyncCompletedEventArgs
'Usage
Dim instance As DownloadStringCompletedEventArgs

public class DownloadStringCompletedEventArgs extends AsyncCompletedEventArgs
public class DownloadStringCompletedEventArgs extends AsyncCompletedEventArgs
Not applicable.

Instances of this class are passed to the DownloadStringCompletedEventHandler.

The following code example demonstrates downloading a string asynchronously.

'  Sample call : DownloadStringInBackground2 ("http:' www.contoso.com/GameScores.html")
Public Shared Sub DownloadStringInBackground2(ByVal address As String)

    Dim client As WebClient = New WebClient()

    '  Specify that the DownloadStringCallback2 method gets called
    '  when the download completes.
    AddHandler client.DownloadStringCompleted, AddressOf DownloadStringCallback2
                Dim uri as Uri = New Uri(address)
    client.DownloadStringAsync(uri)
End Sub


The following method is called when the download completes.

Private Shared Sub DownloadStringCallback2(ByVal sender As Object, ByVal e As DownloadStringCompletedEventArgs)

    '  If the request was not canceled and did not throw
    '  an exception, display the resource.
    If e.Cancelled = False AndAlso e.Error Is Nothing Then

        Dim textString As String = CStr(e.Result)
        Console.WriteLine(textString)
    End If
End Sub


System.Object
   System.EventArgs
     System.ComponentModel.AsyncCompletedEventArgs
      System.Net.DownloadStringCompletedEventArgs

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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