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FtpWebRequest.Method Property

  • Reference

Definition

Namespace:
System.Net
Assembly:
System.Net.Requests.dll
Assembly:
System.dll
Assembly:
netstandard.dll
Source:
FtpWebRequest.cs
Source:
FtpWebRequest.cs
Source:
FtpWebRequest.cs

Gets or sets the command to send to the FTP server.

public:
 virtual property System::String ^ Method { System::String ^ get(); void set(System::String ^ value); };
public override string Method { get; set; }
member this.Method : string with get, set
Public Overrides Property Method As String

Property Value

String

A String value that contains the FTP command to send to the server. The default value is DownloadFile.

Exceptions

InvalidOperationException

A new value was specified for this property for a request that is already in progress.

ArgumentException

The method is invalid.

-or-

The method is not supported.

-or-

Multiple methods were specified.

Examples

The following code example sets this property to DeleteFile.

static bool DeleteFileOnServer( Uri^ serverUri )
{
   // The serverUri parameter should use the ftp:// scheme.
   // It contains the name of the server file that is to be deleted.
   // Example: ftp://contoso.com/someFile.txt.
   // 
   if ( serverUri->Scheme != Uri::UriSchemeFtp )
   {
      return false;
   }

   // Get the object used to communicate with the server.
   FtpWebRequest^ request = dynamic_cast<FtpWebRequest^>(WebRequest::Create( serverUri ));
   request->Method = WebRequestMethods::Ftp::DeleteFile;
   FtpWebResponse^ response = dynamic_cast<FtpWebResponse^>(request->GetResponse());
   Console::WriteLine( "Delete status: {0}", response->StatusDescription );
   response->Close();
   return true;
}

public static bool DeleteFileOnServer(Uri serverUri)
{
    // The serverUri parameter should use the ftp:// scheme.
    // It contains the name of the server file that is to be deleted.
    // Example: ftp://contoso.com/someFile.txt.
    //

    if (serverUri.Scheme != Uri.UriSchemeFtp)
    {
        return false;
    }
    // Get the object used to communicate with the server.
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);
    request.Method = WebRequestMethods.Ftp.DeleteFile;

    FtpWebResponse response = (FtpWebResponse) request.GetResponse();
    Console.WriteLine("Delete status: {0}",response.StatusDescription);
    response.Close();
    return true;
}

Remarks

The Method property determines which command is sent to the server. You set the Method by using the strings defined in the public field members of the WebRequestMethods.Ftp class. Note that the strings defined in the WebRequestMethods.Ftp class are the only supported options for the Method property. Setting the Method property to any other value will result in an ArgumentException exception.

When setting Method to UploadFile, you must do so before calling the GetRequestStream method. Failure to call these members in the correct order causes a ProtocolViolationException exception when you attempt to get the request stream.

The credentials supplied for the FtpWebRequest object must have permission to perform the specified method. If not, the FTP command fails.

To determine the success or failure of a command, check the StatusCode and StatusDescription properties.

Applies to

See also