This documentation is archived and is not being maintained.
HttpWebRequest::HaveResponse Property
Visual Studio 2010
Gets a value that indicates whether a response has been received from an Internet resource.
Assembly: System (in System.dll)
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 = dynamic_cast<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 = dynamic_cast<HttpWebResponse^>(myHttpWebRequest->GetResponse());
if ( myHttpWebRequest->HaveResponse )
{
Stream^ streamResponse = myHttpWebResponse->GetResponseStream();
StreamReader^ streamRead = gcnew StreamReader( streamResponse );
array<Char>^readBuff = gcnew array<Char>(256);
int count = streamRead->Read( readBuff, 0, 256 );
Console::WriteLine( "\nThe contents of Html Page are : \n" );
while ( count > 0 )
{
String^ outputData = gcnew String( readBuff,0,count );
Console::Write( outputData );
count = streamRead->Read( readBuff, 0, 256 );
}
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 " );
}
}
catch ( WebException^ e )
{
Console::WriteLine( "\nWebException Caught" );
Console::WriteLine( "\nSource : {0}", e->Source );
Console::WriteLine( "\nMessage : {0}", e->Message );
}
catch ( Exception^ e )
{
Console::WriteLine( "Exception Caught" );
Console::WriteLine( "Source : {0}", e->Source );
Console::WriteLine( "Message : {0}", e->Message );
}
}
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
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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