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
Assembly: System (in system.dll)

public bool HaveResponse { get; }
/** @property */
public boolean get_HaveResponse ()

public function get HaveResponse () : boolean

Property Value

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.
HttpWebRequest myHttpWebRequest=(HttpWebRequest)WebRequest.Create("http://www.contoso.com");
HttpWebResponse myHttpWebResponse;
// Display the 'HaveResponse' property of the 'HttpWebRequest' object to the console.
Console.WriteLine("\nThe value of 'HaveResponse' property before a response object is obtained :{0}",myHttpWebRequest.HaveResponse);
// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
if (myHttpWebRequest.HaveResponse)
{
    Stream streamResponse=myHttpWebResponse.GetResponseStream();
    StreamReader streamRead = new StreamReader( streamResponse );
    Char[] readBuff = new Char[256];
    int count = streamRead.Read( readBuff, 0, 256 );
    Console.WriteLine("\nThe contents of Html Page are :  \n");    
    while (count > 0) 
    {
        String outputData = new String(readBuff, 0, count);
        Console.Write(outputData);
        count = streamRead.Read(readBuff, 0, 256);
    }
    // Close the Stream object.
    streamResponse.Close();
    streamRead.Close();
    // Release the HttpWebResponse Resource.
    myHttpWebResponse.Close();
    Console.WriteLine("\nPress 'Enter' key to continue..........");
    Console.Read();
}
else
{
    Console.WriteLine("\nThe response is not received ");
}

// Create a new 'HttpWebRequest' Object.
HttpWebRequest myHttpWebRequest = (HttpWebRequest)
    (WebRequest.Create("http://www.contoso.com"));
HttpWebResponse myHttpWebResponse;
// Display the 'HaveResponse' property of the 'HttpWebRequest' 
// object to the console.
Console.WriteLine("\nThe value of 'HaveResponse' property before a"
    +" response object is obtained :{0}", 
    System.Convert.ToString(myHttpWebRequest.get_HaveResponse()));
// Assign the response object of 'HttpWebRequest' to a
//'HttpWebResponse' variable.
myHttpWebResponse = (HttpWebResponse)
    (myHttpWebRequest.GetResponse());

if (myHttpWebRequest.get_HaveResponse()) {
    Stream streamResponse = myHttpWebResponse.GetResponseStream();
    StreamReader streamRead = new StreamReader(streamResponse);
    char readBuff[] = new char[256];
    int count = streamRead.Read(readBuff, 0, 256);

    Console.WriteLine("\nThe contents of Html Page are :  \n");

    while (count > 0) {
        String outputData = new String(readBuff, 0, count);
        Console.Write(outputData);
        count = streamRead.Read(readBuff, 0, 256);
    }

    // Close the Stream object.
    streamResponse.Close();
    streamRead.Close();
    // Release the HttpWebResponse Resource.
    myHttpWebResponse.Close();
    Console.WriteLine("\nPress 'Enter' key to continue..........");
    Console.Read();
}
else {
    Console.WriteLine("\nThe response is not received ");
}

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft