Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
ContentLength Property
Collapse the table of content
Expand the table of content

FileWebResponse.ContentLength Property

Gets the length of the content in the file system resource.

Namespace:  System.Net
Assembly:  System (in System.dll)

'Declaration
Public Overrides ReadOnly Property ContentLength As Long
'Usage
Dim instance As FileWebResponse 
Dim value As Long 

value = instance.ContentLength

Property Value

Type: System.Int64
The number of bytes returned from the file system resource.

The ContentLength property contains the length, in bytes, of the file system resource.

The following example uses the ContentLength property to obtain the content length of the file system resource.

Public Shared Sub GetPage(url As [String])

    Try 
        Dim fileUrl As New Uri("file://" + url)
        ' Create a 'FileWebrequest' object with the specified Uri  
        Dim myFileWebRequest As FileWebRequest = CType(WebRequest.Create(fileUrl), FileWebRequest)
        ' Send the 'fileWebRequest' and wait for response.     
        Dim myFileWebResponse As FileWebResponse = CType(myFileWebRequest.GetResponse(), FileWebResponse)

        ' The ContentLength and ContentType received as headers in the response object are also exposed as properties. 
        ' These provide information about the length and type of the entity body in the response.
        Console.WriteLine(ControlChars.Cr + "Content length :{0}, Content Type : {1}", myFileWebResponse.ContentLength, myFileWebResponse.ContentType)
        myFileWebResponse.Close()
    Catch e As WebException
        Console.WriteLine(ControlChars.Lf + ControlChars.Cr + "The Reason for failure is : {0}", e.Status)
    Catch e As Exception
        Console.WriteLine(ControlChars.Cr + "The following exception was raised : {0}", e.Message)
    End Try
void GetPage(String* url) {
   try {
      Uri* fileUrl = new Uri(String::Concat(S"file://", url));
      // Create a 'FileWebrequest' Object* with the specified Uri.
      FileWebRequest* myFileWebRequest = dynamic_cast<FileWebRequest*>(WebRequest::Create(fileUrl));
      // Send the 'fileWebRequest' and wait for response.
      FileWebResponse* myFileWebResponse = dynamic_cast<FileWebResponse*>(myFileWebRequest->GetResponse());
      // Print the ContentLength and ContentType properties received as headers in the response Object*.
      Console::WriteLine(S"\nContent length : {0}, Content Type : {1}", __box(myFileWebResponse->ContentLength), myFileWebResponse->ContentType);
      // Release resources of response Object*.
      myFileWebResponse->Close();
   } catch (WebException* e) {
      Console::WriteLine(S"\r\nWebException thrown.The Reason for failure is : {0}", __box( e->Status));
   } catch (Exception* e) {
      Console::WriteLine(S"\nThe following Exception was raised : {0}", e->Message);
   }
}

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

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

Community Additions

ADD
Show:
© 2015 Microsoft