Generates a list of files that are to be copied, but doesn't actively copy the files.Ĭreates decrypted destination files when the destination doesn't support encryption.Ĭopies source files changed on or after the specified date only. Suppresses the display of xcopy messages.ĭisplays source and destination file names while copying. Verifies each file as it is written to the destination file to make sure that the destination files are identical to the source files. Prompts you to confirm whether you want to create each destination file. This parameter can include a drive letter and colon, a directory name, a file name, or a combination of these.ĭisplays the following message and waits for your response before starting to copy files: Press any key to begin copying file(s) Specifies the destination of the files you want to copy. ![]() This parameter must include either a drive or a path. Specifies the location and names of the files you want to copy. Another criteria I had was speed and I figured that XCopy would probably be faster than looping over files.Copies files and directories, including subdirectories.įor examples of how to use this command, see Examples. File.Copy(sourceFile, destFileName, true) File.GetLastWriteTime(destinationFiles.First(x => x = destFileName))) if (destinationFiles.Contains(destFileName) & var destFileName = destination + "\\" + new FileInfo(sourceFile).Name var destinationFiles = Directory.GetFiles(destination) var sourceFiles = Directory.GetFiles(source) Public static void CopyFiles(string source, string destination) You may have overestimated the amount of code required to get the function to work: I love the old DOS commands! There are some things that are very hard to do outside of DOS like getting a list of files based on some basic criteria. Visit for a free video on Silverlight entitled Silverlight XAML for the Complete Novice - Part 1. Very simple, and much less code than it would have taken had I coded it using the various File and Directory classes. That's all there is to calling any command in the operating system. Finally you call the Start method of the Process class passing in the ProcessStartInfo object. I created a string with the arguments then filled in the source and destination folders using the string.Format() method. This object is where you fill in name of the command you wish to run and also the arguments that you wish to pass to the command. The CopyFiles method first creates a ProcessStartInfo object. Public Sub CopyFiles(source As String, destination As String)ĭim args As String = "\*.* /q /d /y"Īrgs = String.Format(args, source, destination) ProcessStartInfo si = new ProcessStartInfo() Īrgs = string.Format(args, source, destination) Public void CopyFiles(string source, string destination) NET programs, you can write the CopyFiles method presented below. To translate this into code that we can call from our. ![]() The /y option will automatically overwrite any existing files without prompting the user to press the "Y" key to overwrite the file. The /d option says to get any newer files it finds in the Original folder that are not in the Backup folder, or any files that have a newer date/time stamp. The /q option says to do it quitely without repeating all the file names as it copies them. What this command does is to copy all files from the Original folder on the C drive to the Backup folder on the D drive. The command I needed to run at the command prompt looked like this: ![]() So instead of writing a ton of code I decided to simply call the XCopy command using the Process class in. One of the options you can pass to this command is to grab only newer files when copying from one folder to another. The XCopy command in DOS (or the command prompt for you pure Windows people) is very powerful. Of course I could build it out of the various File and Directory classes, but then I remembered back to my old DOS days (yes, I am that old!). So, we needed to be able to copy over all the files one time, then also be able to go back a little later and grab just the new files.Īfter looking into the System.IO namespace, none of the classes within here met my needs exactly. However, there was a process that was running that would dump new files into the original folder every minute or so. ![]() Recently I had a client that had a need to copy files from one folder to another.
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