如何在C#中重命名文件夹/目录?

Directory.Move(@"C:\Temp\Dir1", @"C:\Temp\dir1_temp");
Directory.Move(@"C:\Temp\dir1_temp", @"C:\Temp\dir1");

除非将文件移动到其他卷,否则不会移动这些文件。如果目标位于同一卷上,则只有目录名会更改。

Directory.Move 不随目录大小扩展(除非您要复制到另一个驱动器),所以两次调用它没有什么错。

2020解决方案:

/// <summary>
/// Renames a folder name
/// </summary>
/// <param name="directory">The full directory of the folder</param>
/// <param name="newFolderName">New name of the folder</param>
/// <returns>Returns true if rename is successfull</returns>
public static bool RenameFolder(string directory, string newFolderName)
{
    try
    {
        if (string.IsNullOrWhiteSpace(directory) ||
            string.IsNullOrWhiteSpace(newFolderName))
        {
            return false;
        }


        var oldDirectory = new DirectoryInfo(directory);

        if (!oldDirectory.Exists)
        {
            return false;
        }

        if (string.Equals(oldDirectory.Name, newFolderName, StringComparison.OrdinalIgnoreCase))
        {
            //new folder name is the same with the old one.
            return false;
        }

        string newDirectory;

        if (oldDirectory.Parent == null)
        {
            //root directory
            newDirectory = Path.Combine(directory, newFolderName);
        }
        else
        {
            newDirectory = Path.Combine(oldDirectory.Parent.FullName, newFolderName);
        }

        if (Directory.Exists(newDirectory))
        {
            //target directory already exists
            return false;
        }

        oldDirectory.MoveTo(newDirectory);

        return true;
    }
    catch
    {
        //ignored
        return false;
    }
}

以下是如何做到这一点:

My.Computer.FileSystem.RenameDirectory("c:\temp\Torename", "ToRename")

第一个参数是当前目录,第二个参数是目录的新名称。

资料来源: FileSystem.RenameDirectory Method

您可以用一个简单的

DirectoryHelper.RenameDirectory(@"C:\temp\RenameMe\", "RenameMeToThis");

根据我在MSDN文档中找到的内容,RenameDirectory方法中提供了所有可能的异常。您可以选择将它们简化为单个try-catch块(可能,不推荐),或者您可能希望修改异常的处理方式,但这应该可以让您继续。我还包括了第三个可选参数,允许您在需要时抑制异常,它只返回false而不是抛出异常。它默认为false(即,不抑制异常)。

我还没有尝试过每个测试路径,但是我会非常小心地将驱动器重命名,例如“C:\”到“E:\”。它可能会抛出一个异常。。。但我没有测试。:-)

   public class DirectoryHelper
    {
        public static bool RenameDirectory(string sourceDirectoryPath, string newDirectoryNameWithNoPath, bool suppressExceptions = false)
        {
            try
            {
                DirectoryInfo di;
                try
                {
                    //https://docs.microsoft.com/en-us/dotnet/api/system.io.directoryinfo.-ctor?view=net-5.0
                    di = new DirectoryInfo(sourceDirectoryPath);
                }
                catch (ArgumentNullException e)
                {
                    throw new Exception("Source directory path is null.", e);
                }
                catch (SecurityException e)
                {
                    throw new Exception($"The caller does not have the required permission for Source Directory:{sourceDirectoryPath}.", e);
                }
                catch (ArgumentException e)
                {
                    //Could reference: https://docs.microsoft.com/en-us/dotnet/api/system.io.path.getinvalidpathchars?view=net-5.0 
                    throw new Exception($"Source directory path contains invalid character(s): {sourceDirectoryPath}", e);
                }
                catch (PathTooLongException e)
                {
                    throw new Exception($"Source directory path is too long. Length={sourceDirectoryPath.Length}", e);
                }

                string destinationDirectoryPath = di.Parent == null ? newDirectoryNameWithNoPath : Path.Combine(di.Parent.FullName, newDirectoryNameWithNoPath);

                try
                {
                    //https://docs.microsoft.com/en-us/dotnet/api/system.io.directoryinfo.moveto?view=net-5.0 
                    di.MoveTo(destinationDirectoryPath);
                }
                catch (ArgumentNullException e)
                {
                    throw new Exception("Destination directory is null.", e);
                }
                catch (ArgumentException e)
                {
                    throw new Exception("Destination directory must not be empty.", e);
                }
                catch (SecurityException e)
                {
                    throw new Exception($"The caller does not have the required permission for Directory rename:{destinationDirectoryPath}.", e);
                }
                catch (PathTooLongException e)
                {
                    throw new Exception($"Rename path is too long. Length={destinationDirectoryPath.Length}", e);
                }
                catch (IOException e)
                {
                    if (Directory.Exists(destinationDirectoryPath))
                    {
                        throw new Exception($"Cannot rename source directory, destination directory already exists: {destinationDirectoryPath}", e);
                    }

                    if (string.Equals(sourceDirectoryPath, destinationDirectoryPath, StringComparison.InvariantCultureIgnoreCase))
                    {
                        throw new Exception($"Source directory cannot be the same as Destination directory.", e);
                    }

                    throw new Exception($"IOException: {e.Message}", e);
                }
            }
            catch(Exception)
            {
                if (!suppressExceptions)
                {
                    throw;
                }

                return false;
            }

            return true;
        }
}

目录。移动目录 文件。移动文件