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HttpWebRequest::HaveResponse Property
.NET Framework (current version)
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 );
}
}
Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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