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OpenReadCompletedEventArgs Class

Provides data for the OpenReadCompleted event.

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

Public Class OpenReadCompletedEventArgs
	Inherits AsyncCompletedEventArgs
Dim instance As OpenReadCompletedEventArgs

public class OpenReadCompletedEventArgs extends AsyncCompletedEventArgs
public class OpenReadCompletedEventArgs extends AsyncCompletedEventArgs
Not applicable.

Instances of this class are passed to OpenReadCompletedEventHandler methods.

The following code example demonstrates downloading a resource for reading.

Public Shared Sub OpenResourceForReading2(ByVal address As String)

    Dim client As WebClient = New WebClient()
    AddHandler client.OpenReadCompleted, AddressOf OpenReadCallback2
                Dim uri as Uri = New Uri(address)
End Sub

The following method is called when the download completes.

Private Shared Sub OpenReadCallback2(ByVal sender As Object, ByVal e As OpenReadCompletedEventArgs)

    Dim reply As Stream = Nothing
    Dim s As StreamReader = Nothing


        reply = CType(e.Result, Stream)
        s = New StreamReader(reply)

        If Not s Is Nothing Then

        End If

        If Not reply Is Nothing Then

        End If
    End Try
End Sub


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