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HttpWebRequest.HaveResponse Property

Gets a value that indicates whether a response has been received from an Internet resource.

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

'Declaration
Public Overridable ReadOnly Property HaveResponse As Boolean

Property Value

Type: System.Boolean
true if a response has been received; otherwise, false.

The following code example checks the HaveResponse property to determine if a response has been received from an Internet resource.

            ' Create a new 'HttpWebRequest' Object. 
            Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create("http://www.contoso.com"), HttpWebRequest)
            Dim myHttpWebResponse As HttpWebResponse
            ' Display the 'HaveResponse' property of the 'HttpWebRequest' object to the console.
            Console.WriteLine(ControlChars.Cr + "The value of 'HaveResponse' property before a response object is obtained :{0}", myHttpWebRequest.HaveResponse)
            ' Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
            myHttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
            If myHttpWebRequest.HaveResponse Then 
                Dim streamResponse As Stream = myHttpWebResponse.GetResponseStream()
                Dim streamRead As New StreamReader(streamResponse)
                Dim readBuff(256) As [Char]
                Dim count As Integer = streamRead.Read(readBuff, 0, 256)
                Console.WriteLine(ControlChars.Cr + "The contents of Html Page are :  " + ControlChars.Cr)
                While count > 0
                    Dim outputData As New [String](readBuff, 0, count)
                    Console.Write(outputData)
                    count = streamRead.Read(readBuff, 0, 256)
                End While 
		          '  Close the Stream object.
		          streamResponse.Close()
		          streamRead.Close()
		          ' Release the HttpWebResponse Resource.
		          myHttpWebResponse.Close()
                Console.WriteLine(ControlChars.Cr + "Press 'Enter' key to continue..........")
                Console.Read()

            Else
                Console.WriteLine(ControlChars.Cr + "The response is not received ")
            End If

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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