NHSE/NHSE.WinForms/Util/FileUtil.cs

using System.IO;

namespace NHSE.WinForms;

public static class FileUtil
{
    public static void CopyFolder(string source, string dest, bool subfolders = true)
    {
        Directory.CreateDirectory(dest);

        var dir = new DirectoryInfo(source);
        foreach (var file in dir.EnumerateFiles())
        {
            var path = Path.Combine(dest, file.Name);
            file.CopyTo(path, false);
        }

        if (!subfolders)
            return;

        foreach (var folder in dir.EnumerateDirectories())
        {
            var path = Path.Combine(dest, folder.Name);
            CopyFolder(folder.FullName, path);
        }
    }
}