ComponentPro UltimateFtp

      Download(String, Boolean, IEnumerable, String, TransferOptions, Int32, Boolean) Method

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      Downloads the content of the specified remote file or directory to the specified local directory using multiple threads.

      Syntax

      public FileSystemTransferStatistics Download(
         string remotePath, 
         bool includeBaseDirectory, 
         IEnumerable remoteFilesToTransfer, 
         string localPath, 
         TransferOptions options, 
         int threads, 
         bool waitForThreads
      )

      Parameters

      remotePath
      The path and name of the remote directory where the files will be downloaded to the local folder. When the parameter remoteFilesToTransfer is a null reference, this parameter can include filtering masks to limit the files that are downloaded. For example, if ""(empty string) is specified, the entire contents of the current folder will be downloaded. If "*.txt" is used, all the files in the current folder that have the .TXT extension will be downloaded. If "/mydir/*.dat;*.cs,*.vb" is used (masks are delimited by ',', ';', and '|' characters), files with the DAT, CS, or VB extension in "/mydir" will be downloaded. If no masks specified, the whole content of the remote directory should be downloaded. The final search condition depends on the SearchCondition and SearchConditionCombinedWithMasksInSourcePath settings of the options parameter. Attention: some servers may be case-sensitive!
      includeBaseDirectory
      Indicates whether the containing directory should also be created in the destination directory. For example: Download("/MyDir/*.txt", true, null, "/ZipDir" ...) - if this parameter is true, "MyDir" is created in "ZipDir" and all files and dirs within "MyDir" are copied to "ZipDir/MyDir"; otherwise false, "MyDir" is not created in "ZipDir", only files and subdirectories within "MyDir" are copied to "ZipDir".
      remoteFilesToTransfer
      The list of files and directories to download, or a null reference to transfer files in the remotePath that match the search condition specified in the options parameter. This list can contain String and FileInfoBase objects. (e.g. Download("", false, new string[] {"file1", "file2", "dir1" }...) or Download(new object[] {"file1", fileInfo1, fileInfo2 }...))
      localPath
      The path of the local directory to receive files from the server.
      options
      The transfer options object which provides many settings to control the file transfer process.
      threads
      The number of threads used for the simultaneous file transfer.
      waitForThreads
      A boolean value indicating whether to wait for the completion of all threads. If this parameter is true, this method blocks the caller process's execution until all threads have completed; otherwise, this method immediately returns the control to the caller process.

      Return Value

      A FileSystemTransferStatistics object that contains transfer statictics and a list of processed files and directories.

      Examples

      Use 50 threads to download files simultaneously from the local disk.

      using ComponentPro;
      using ComponentPro.IO;
      using ComponentPro.Net;
      
      ...
      
      using (Ftp ftp = new Ftp())
      {
          // Connect to the FTP server. 
          ftp.Connect("localhost");
      
          // Authenticate. 
          ftp.Authenticate("test", "test");
      
          ftp.Download(
              "/data", // The remote directory on the FTP server. 
              false, // The base directory is not include - only files and subdirectories in "c:\data" will be copied. 
              null,
              "C:\\data", // The local directory. 
              new TransferOptions(),
              50, // Use 50 threads 
              true // Wait until all the threads complete. 
              );
      
          // Download TXT and DAT files only 
          ftp.Download(
              "/data/*.txt;*.dat", // The remote directory on the FTP server. 
              false, // The base directory is not include - only files and subdirectories in "c:\data" will be copied. 
              null,
              "C:\\data", // The local directory. 
              new TransferOptions(),
              50, // Use 50 threads 
              true // Wait until all the threads complete. 
              );
      
      
          string[] filesAndFoldersToDownload = new string[]
                                                 {
                                                     "content1", // folder 
                                                     "content2", // folder 
                                                     "dir\\file1", // file 
                                                     "file2"       // file                                              
                                                 };
      
          ftp.Download(
              "/data", // The remote directory on the FTP server. 
              false, // The base directory is not include 
              filesAndFoldersToDownload, // only files and folders in this list in "/data" folder will be downloaded. 
              "C:\\data", // The local directory. 
              new TransferOptions(),
              50, // Use 50 threads 
              true // Wait until all the threads complete. 
              );
      }

      Framework

      .NET Compact Framework.NET Compact Framework

      Supported version: 2.0, 3.5, and 3.9
      Assembly: ComponentPro.Ftp.CF (in ComponentPro.Ftp.CF.dll)

      .NET Framework.NET Framework

      Supported version: 2.0, 3.0, 3.5, 4.0, 4.5.x, 4.6.x and later
      Assembly: ComponentPro.Ftp (in ComponentPro.Ftp.dll)

      Portable Class Library for Windows Phone 8.1 and Windows 8.1 Store AppsPortable Class Library for Windows Phone 8.1 and Windows 8.1 Store Apps

      Supported version: 4.6.x and later
      Assembly: ComponentPro.Ftp.WinPcl (in ComponentPro.Ftp.WinPcl.dll)

      Universal Windows Platform (includes Windows 10 Mobile, Windows 10 Store Apps and Windows 10 IoT)Universal Windows Platform (includes Windows 10 Mobile, Windows 10 Store Apps and Windows 10 IoT)

      Supported version: 4.6.x and later
      Assembly: ComponentPro.Ftp.Uwp (in ComponentPro.Ftp.Uwp.dll)

      Xamarin AndroidXamarin Android

      Supported version: 2.3 and later
      Assembly: ComponentPro.Ftp.Android (in ComponentPro.Ftp.Android.dll)

      Xamarin MacXamarin Mac

      Supported version: 2.0.x and later
      Assembly: ComponentPro.Ftp.Mac (in ComponentPro.Ftp.Mac.dll)

      Xamarin iOSXamarin iOS

      Supported version: 5.1.x and later
      Assembly: ComponentPro.Ftp.iOS (in ComponentPro.Ftp.iOS.dll)

      See Also