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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)

public bool HaveResponse { get; }

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.
			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 =
   dynamic_cast<HttpWebRequest*>(WebRequest::Create(S"http://www.contoso.com"));
HttpWebResponse* myHttpWebResponse;
// Display the 'HaveResponse' property of the 'HttpWebRequest' object to the console.
Console::WriteLine(S"\nThe value of 'HaveResponse' property before a response object is obtained : {0}",
   __box(myHttpWebRequest->HaveResponse));
// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
myHttpWebResponse =
   dynamic_cast<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(S"\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(S"\nPress 'Enter' key to continue..........");
   Console::Read();
} else {
   Console::WriteLine(S"\nThe response is not received ");
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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