Export (0) Print
Expand All

HttpWebRequest.HaveResponse Property

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

Namespace:  System.Net
Assemblies:   System.Net.Requests (in System.Net.Requests.dll)
  System (in System.dll)

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)
                    count = streamRead.Read(readBuff, 0, 256)
                End While 
		          '  Close the Stream object.
		          ' Release the HttpWebResponse Resource.
                Console.WriteLine(ControlChars.Cr + "Press 'Enter' key to continue..........")

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
© 2015 Microsoft