CODEWITHSUNDEEP
c#
Sunny Sandeep
Sunny Sandeep

Reputation: 1011

Move Folder and its contents to Other Folder

I am working on an asp.net application where i have to move any Folder and its contents to another. Suppose i have a Main folder and in that folder there is 3 subfolders. In each subfolder there is a file. I want to move folder and all its contents to another place. For this i used the following code

if (!Directory.Exists(@"E:\Sunny\C#FolderCopy"))
{
   Directory.CreateDirectory(@"E:\Sunny\C#FolderCopy");
   Directory.Move(@"E:\Sunny\C#Folder\", @"E:\Sunny\C#FolderCopy\");
}

But when the control reaches to move function The error comes as

Cannot create a file when that file already exists.

How to solve this

Upvotes: 2

Views: 8408

Answers (2)

Romano Zumbé
Romano Zumbé

Reputation: 8099

Directory.Move already creates the folder for you. You only need to adjust to the following:

if (!Directory.Exists(@"E:\Sunny\C#FolderCopy"))
{
   Directory.Move(@"E:\Sunny\C#Folder\", @"E:\Sunny\C#FolderCopy\");
}

If you want to copy the folder (as indicated by your comment) you can use FileSystem.CopyDirectory. It is located in a Visual Basic namespace but that should be of no concern at all:

using Microsoft.VisualBasic.FileIO;

if (!Directory.Exists(@"E:\Sunny\C#FolderCopy"))
{
   FileSystem.CopyDirectory(@"E:\Sunny\C#Folder\", @"E:\Sunny\C#FolderCopy\");
}

Or use this method (taken from msdn):

DirectoryCopy(".", @".\temp", true);

private static void DirectoryCopy(
    string sourceDirName, string destDirName, bool copySubDirs)
{
  DirectoryInfo dir = new DirectoryInfo(sourceDirName);
  DirectoryInfo[] dirs = dir.GetDirectories();

  // If the source directory does not exist, throw an exception.
    if (!dir.Exists)
    {
        throw new DirectoryNotFoundException(
            "Source directory does not exist or could not be found: "
            + sourceDirName);
    }

    // If the destination directory does not exist, create it.
    if (!Directory.Exists(destDirName))
    {
        Directory.CreateDirectory(destDirName);
    }


    // Get the file contents of the directory to copy.
    FileInfo[] files = dir.GetFiles();

    foreach (FileInfo file in files)
    {
        // Create the path to the new copy of the file.
        string temppath = Path.Combine(destDirName, file.Name);

        // Copy the file.
        file.CopyTo(temppath, false);
    }

    // If copySubDirs is true, copy the subdirectories.
    if (copySubDirs)
    {

        foreach (DirectoryInfo subdir in dirs)
        {
            // Create the subdirectory.
            string temppath = Path.Combine(destDirName, subdir.Name);

            // Copy the subdirectories.
            DirectoryCopy(subdir.FullName, temppath, copySubDirs);
        }
    }
}

Upvotes: 4

Mohammed Athar Imran Ahmed
Mohammed Athar Imran Ahmed

Reputation: 675

Recursive Files Move. Call this method and all it do.

public static void MoveDirectory(string source, string target)
{
    var sourcePath = source.TrimEnd('\\', ' ');
    var targetPath = target.TrimEnd('\\', ' ');
    var files = Directory.EnumerateFiles(sourcePath, "*", SearchOption.AllDirectories)
                         .GroupBy(s=> Path.GetDirectoryName(s));
    foreach (var folder in files)
    {
        var targetFolder = folder.Key.Replace(sourcePath, targetPath);
        Directory.CreateDirectory(targetFolder);
        foreach (var file in folder)
        {
            var targetFile = Path.Combine(targetFolder, Path.GetFileName(file));
            if (File.Exists(targetFile)) File.Delete(targetFile);
            File.Move(file, targetFile);
        }
    }
    Directory.Delete(source, true);
}

Upvotes: 2

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