Provides data for the DownloadStringCompleted event.
Assembly: System (in System.dll)
Gets a value indicating whether an asynchronous operation has been canceled.(Inherited from AsyncCompletedEventArgs.)
Gets a value indicating which error occurred during an asynchronous operation.(Inherited from AsyncCompletedEventArgs.)
Gets the data that is downloaded by a DownloadStringAsync method.
Gets the unique identifier for the asynchronous task.(Inherited from AsyncCompletedEventArgs.)
Determines whether the specified object is equal to the current object.(Inherited from Object.)
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)
Serves as the default hash function. (Inherited from Object.)
Raises a user-supplied exception if an asynchronous operation failed.(Inherited from AsyncCompletedEventArgs.)
Returns a string that represents the current object.(Inherited from Object.)
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
Available since 2.0
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.