HttpWebRequest.HaveResponse Özellik
Önemli
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Bir İnternet kaynağından yanıt alınıp alınmadığını gösteren bir değer alır.
public:
virtual property bool HaveResponse { bool get(); };public:
property bool HaveResponse { bool get(); };C#
public virtual bool HaveResponse { get; }C#
public bool HaveResponse { get; }member this.HaveResponse : boolPublic Overridable ReadOnly Property HaveResponse As BooleanPublic ReadOnly Property HaveResponse As Boolean
true yanıt alındıysa; aksi takdirde , false.
Aşağıdaki kod örneği, bir İnternet kaynağından yanıt alındığını belirlemek için özelliğini denetler HaveResponse .
// 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 );
}
}
C#
// 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.
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)
Console.Write(outputData)
count = streamRead.Read(readBuff, 0, 256)
End While
' Close the Stream object.
streamResponse.Close()
streamRead.Close()
' Release the HttpWebResponse Resource.
myHttpWebResponse.Close()
Console.WriteLine(ControlChars.Cr + "Press 'Enter' key to continue..........")
Console.Read()
Else
Console.WriteLine(ControlChars.Cr + "The response is not received ")
End If
| Ürün | Sürümler |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
| UWP | 10.0 |
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