哇，您可以在 PowerShell 中使用 C#！

环顾四周，我羡慕每个人都在 C# 中玩耍并利用我不知道如何在 PowerShell 中访问的酷功能。例如，
我喜欢这种方法，它不依赖于遗留 API，并且对不受支持的系统有一个后备。
然后我看到您可以在 PowerShell 中使用实际的 C#！我将两者放在一起，稍微修改了代码以使其更容易从 PS 调用，然后出现了一种相当轻量级的、希望强大的方法来调用用户可用的最佳文件夹浏览器对话框：

[Revised code below]

我很想听听关于整个方法可能有多可靠的意见。
无法访问某些引用或出现其他问题的可能性有多大？

无论如何，我现在对这种方法很满意:)

编辑：PowerShell“核心”（pwsh.exe；较新的程序集）

因此，正如@mklement0在评论中指出的那样，积极开发的PowerShell（以前（以及以后，为了可读性）被称为“PowerShell Core”；与 Windows 附带的Windows PowerShell 相对）似乎没有玩这个也不错。在查看了 PS Core 无益地仅报告为“ The type initializer for 'VistaDialog' threw an exception.”的内容（并添加了对 的引用System.ComponentModel.Primitives）后，结果发现 PS Core 倾向于使用较新版本的System.Windows.Forms，在我的案例中5.0.4.0，它不包含类型FileDialogNative，更不用说它的嵌套了输入IFileDialog.
我试图强制它使用 Windows PS 引用的版本 ( 4.0.0.0)，但它不遵守。

好吧，我终于放下了一分钱，让 PS Core 只使用默认对话框，这已经是我最初追求的升级版

因此，随着引入带有可选参数的构造函数方法的概念变化，我为失败的“Vista 对话框”添加了一个后备。
我没有检查 PS 的版本或单个程序集和/或类/类型，而是简单地将调用包装在try/catch块中。

$path = $args[0]
$title = $args[1]
$message = $args[2]

$source = @'
using System;
using System.Diagnostics;
using System.Reflection;
using System.Windows.Forms;
/// <summary>
/// Present the Windows Vista-style open file dialog to select a folder. Fall back for older Windows Versions
/// </summary>
#pragma warning disable 0219, 0414, 0162
public class FolderSelectDialog {
    private string _initialDirectory;
    private string _title;
    private string _message;
    private string _fileName = "";
    
    public string InitialDirectory {
        get { return string.IsNullOrEmpty(_initialDirectory) ? Environment.CurrentDirectory : _initialDirectory; }
        set { _initialDirectory = value; }
    }
    public string Title {
        get { return _title ?? "Select a folder"; }
        set { _title = value; }
    }
    public string Message {
        get { return _message ?? _title ?? "Select a folder"; }
        set { _message = value; }
    }
    public string FileName { get { return _fileName; } }

    public FolderSelectDialog(string defaultPath="MyComputer", string title="Select a folder", string message=""){
        InitialDirectory = defaultPath;
        Title = title;
        Message = message;
    }
    
    public bool Show() { return Show(IntPtr.Zero); }

    /// <param name="hWndOwner">Handle of the control or window to be the parent of the file dialog</param>
    /// <returns>true if the user clicks OK</returns>
    public bool Show(IntPtr? hWndOwnerNullable=null) {
        IntPtr hWndOwner = IntPtr.Zero;
        if(hWndOwnerNullable!=null)
            hWndOwner = (IntPtr)hWndOwnerNullable;
        if(Environment.OSVersion.Version.Major >= 6){
            try{
                var resulta = VistaDialog.Show(hWndOwner, InitialDirectory, Title, Message);
                _fileName = resulta.FileName;
                return resulta.Result;
            }
            catch(Exception){
                var resultb = ShowXpDialog(hWndOwner, InitialDirectory, Title, Message);
                _fileName = resultb.FileName;
                return resultb.Result;
            }
        }
        var result = ShowXpDialog(hWndOwner, InitialDirectory, Title, Message);
        _fileName = result.FileName;
        return result.Result;
    }

    private struct ShowDialogResult {
        public bool Result { get; set; }
        public string FileName { get; set; }
    }

    private static ShowDialogResult ShowXpDialog(IntPtr ownerHandle, string initialDirectory, string title, string message) {
        var folderBrowserDialog = new FolderBrowserDialog {
            Description = message,
            SelectedPath = initialDirectory,
            ShowNewFolderButton = true
        };
        var dialogResult = new ShowDialogResult();
        if (folderBrowserDialog.ShowDialog(new WindowWrapper(ownerHandle)) == DialogResult.OK) {
            dialogResult.Result = true;
            dialogResult.FileName = folderBrowserDialog.SelectedPath;
        }
        return dialogResult;
    }

    private static class VistaDialog {
        private const string c_foldersFilter = "Folders|n";
        
        private const BindingFlags c_flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
        private readonly static Assembly s_windowsFormsAssembly = typeof(FileDialog).Assembly;
        private readonly static Type s_iFileDialogType = s_windowsFormsAssembly.GetType("System.Windows.Forms.FileDialogNative+IFileDialog");
        private readonly static MethodInfo s_createVistaDialogMethodInfo = typeof(OpenFileDialog).GetMethod("CreateVistaDialog", c_flags);
        private readonly static MethodInfo s_onBeforeVistaDialogMethodInfo = typeof(OpenFileDialog).GetMethod("OnBeforeVistaDialog", c_flags);
        private readonly static MethodInfo s_getOptionsMethodInfo = typeof(FileDialog).GetMethod("GetOptions", c_flags);
        private readonly static MethodInfo s_setOptionsMethodInfo = s_iFileDialogType.GetMethod("SetOptions", c_flags);
        private readonly static uint s_fosPickFoldersBitFlag = (uint) s_windowsFormsAssembly
            .GetType("System.Windows.Forms.FileDialogNative+FOS")
            .GetField("FOS_PICKFOLDERS")
            .GetValue(null);
        private readonly static ConstructorInfo s_vistaDialogEventsConstructorInfo = s_windowsFormsAssembly
            .GetType("System.Windows.Forms.FileDialog+VistaDialogEvents")
            .GetConstructor(c_flags, null, new[] { typeof(FileDialog) }, null);
        private readonly static MethodInfo s_adviseMethodInfo = s_iFileDialogType.GetMethod("Advise");
        private readonly static MethodInfo s_unAdviseMethodInfo = s_iFileDialogType.GetMethod("Unadvise");
        private readonly static MethodInfo s_showMethodInfo = s_iFileDialogType.GetMethod("Show");

        public static ShowDialogResult Show(IntPtr ownerHandle, string initialDirectory, string title, string description) {
            var openFileDialog = new OpenFileDialog {
                AddExtension = false,
                CheckFileExists = false,
                DereferenceLinks = true,
                Filter = c_foldersFilter,
                InitialDirectory = initialDirectory,
                Multiselect = false,
                Title = title
            };

            var iFileDialog = s_createVistaDialogMethodInfo.Invoke(openFileDialog, new object[] { });
            s_onBeforeVistaDialogMethodInfo.Invoke(openFileDialog, new[] { iFileDialog });
            s_setOptionsMethodInfo.Invoke(iFileDialog, new object[] { (uint) s_getOptionsMethodInfo.Invoke(openFileDialog, new object[] { }) | s_fosPickFoldersBitFlag });
            var adviseParametersWithOutputConnectionToken = new[] { s_vistaDialogEventsConstructorInfo.Invoke(new object[] { openFileDialog }), 0U };
            s_adviseMethodInfo.Invoke(iFileDialog, adviseParametersWithOutputConnectionToken);

            try {
                int retVal = (int) s_showMethodInfo.Invoke(iFileDialog, new object[] { ownerHandle });
                return new ShowDialogResult {
                    Result = retVal == 0,
                    FileName = openFileDialog.FileName
                };
            }
            finally {
                s_unAdviseMethodInfo.Invoke(iFileDialog, new[] { adviseParametersWithOutputConnectionToken[1] });
            }
        }
    }

    // Wrap an IWin32Window around an IntPtr
    private class WindowWrapper : IWin32Window {
        private readonly IntPtr _handle;
        public WindowWrapper(IntPtr handle) { _handle = handle; }
        public IntPtr Handle { get { return _handle; } }
    }
    
    public string getPath(){
        if (Show()){
            return FileName;
        }
        return "";
    }
}
'@
Add-Type -Language CSharp -TypeDefinition $source -ReferencedAssemblies ("System.Windows.Forms", "System.ComponentModel.Primitives")
([FolderSelectDialog]::new($path, $title, $message)).getPath()

这应该适用于Windows PowerShell（最终版本 ~ 5.1）和当前的 PS“核心”（pwsh.exe~ 7.1.3）