FileWebResponse.ContentLength Property

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

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

Public Overrides ReadOnly Property ContentLength As Long
Dim instance As FileWebResponse
Dim value As Long

value = instance.ContentLength

/** @property */
public long get_ContentLength ()

public override function get ContentLength () : long

Property Value

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])
        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)
    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

public static void GetPage(String url)
    try {
        Uri fileUrl = new Uri("file://" + url);

        // Create a 'FileWebrequest' object with the specified Uri.
        FileWebRequest myFileWebRequest = (FileWebRequest)(WebRequest.

        // Send the 'fileWebRequest' and wait for response.    
        FileWebResponse myFileWebResponse = (FileWebResponse)(

        // Print the ContentLength and ContentType properties received as
        // headers in the response object.
        Console.WriteLine("\nContent length :{0}, Content Type : {1}",

        // Release resources of response object.
    catch (WebException e) {
        Console.WriteLine("\r\nWebException thrown.The Reason for failure "
            + " is : {0}", e.get_Status());
    catch (System.Exception e) {
        Console.WriteLine("\nThe following Exception was raised : {0}",
} //GetPage

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

Community Additions