选择目录或选择文件夹对话框，先上图，类似vs打开文件夹的对话框
一、第一实现，使用插件：
nuget安装WindowsAPICodePack插件：
WindowsAPICodePack-
或者
WindowsAPICodePack 版本：1.1.2
实现代码如下：
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var commonOpenFileDialog = new CommonOpenFileDialog(); commonOpenFileDialog.IsFolderPicker = true; //设置为true为选择文件夹，设置为false为选择文件 commonOpenFileDialog.Title = "选择文件夹"; commonOpenFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles); var result = commonOpenFileDialog.ShowDialog(); if (result == CommonFileDialogResult.Ok) { string str = commonOpenFileDialog.FileName; MessageBox.Show(str); } |
会缩小主窗口
二、使用框架
nuget搜索Ookii.Dialogs.WinForms
.net Framework 4.5+
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VistaFolderBrowserDialog vistaOpenFileDialog = new VistaFolderBrowserDialog(); vistaOpenFileDialog.ShowDialog(); |
这个不会缩小主窗口。
三、使用代码实现
不会缩小主窗口
文件名：FolderBrowserDialogHelper.cs
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using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing.Design; using System.Linq; using System.Runtime.InteropServices; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Windows.Forms.Design; namespace WindowsFormsApp { #region Editor /// <summary> /// FolderBrowser 的设计器基类 /// </summary> public class FolderNameEditor : UITypeEditor { public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context) { return UITypeEditorEditStyle.Modal; } public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value) { FolderBrowserDialogHelper browser = new FolderBrowserDialogHelper(); if (value != null) { browser.DirectoryPath = string.Format("{0}", value); } if (browser.ShowDialog(null) == DialogResult.OK) return browser.DirectoryPath; return value; } } #endregion #region FolderBrowserDialog Base /// <summary> /// Vista 样式的选择文件对话框的基类 /// </summary> [Description("提供一个Vista样式的选择文件对话框")] [Editor(typeof(FolderNameEditor), typeof(UITypeEditor))] public class FolderBrowserDialogHelper : Component { /// <summary> /// 初始化 FolderBrowser 的新实例 /// </summary> public FolderBrowserDialogHelper() { } #region Public Property /// <summary> /// 获取在 FolderBrowser 中选择的文件夹路径 /// </summary> public string DirectoryPath { get; set; } /// <summary> /// 向用户显示 FolderBrowser 的对话框 /// </summary> /// <param name="owner">任何实现 System.Windows.Forms.IWin32Window（表示将拥有模式对话框的顶级窗口）的对象。</param> /// <returns></returns> public DialogResult ShowDialog(IWin32Window owner) { IntPtr hwndOwner = owner != null ? owner.Handle : GetActiveWindow(); IFileOpenDialog dialog = (IFileOpenDialog)new FileOpenDialog(); try { IShellItem item; if (!string.IsNullOrEmpty(DirectoryPath)) { IntPtr idl; uint atts = 0; if (SHILCreateFromPath(DirectoryPath, out idl, ref atts) == 0) { if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0) { dialog.SetFolder(item); } } } dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM); uint hr = dialog.Show(hwndOwner); if (hr == ERROR_CANCELLED) return DialogResult.Cancel; if (hr != 0) return DialogResult.Abort; dialog.GetResult(out item); string path; item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path); DirectoryPath = path; return DialogResult.OK; } finally { Marshal.ReleaseComObject(dialog); } } #endregion #region BaseType [DllImport("shell32.dll")] private static extern int SHILCreateFromPath([MarshalAs(UnmanagedType.LPWStr)] string pszPath, out IntPtr ppIdl, ref uint rgflnOut); [DllImport("shell32.dll")] private static extern int SHCreateShellItem(IntPtr pidlParent, IntPtr psfParent, IntPtr pidl, out IShellItem ppsi); [DllImport("user32.dll")] private static extern IntPtr GetActiveWindow(); private const uint ERROR_CANCELLED = 0x800704C7; [ComImport] [Guid("DC1C5A9C-E88A-4dde-A5A1-60F82A20AEF7")] private class FileOpenDialog { } [ComImport] [Guid("42f85136-db7e-439c-85f1-e4075d135fc8")] [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IFileOpenDialog { [PreserveSig] uint Show([In] IntPtr parent); // IModalWindow void SetFileTypes(); // not fully defined void SetFileTypeIndex([In] uint iFileType); void GetFileTypeIndex(out uint piFileType); void Advise(); // not fully defined void Unadvise(); void SetOptions([In] FOS fos); void GetOptions(out FOS pfos); void SetDefaultFolder(IShellItem psi); void SetFolder(IShellItem psi); void GetFolder(out IShellItem ppsi); void GetCurrentSelection(out IShellItem ppsi); void SetFileName([In, MarshalAs(UnmanagedType.LPWStr)] string pszName); void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName); void SetTitle([In, MarshalAs(UnmanagedType.LPWStr)] string pszTitle); void SetOkButtonLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszText); void SetFileNameLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel); void GetResult(out IShellItem ppsi); void AddPlace(IShellItem psi, int alignment); void SetDefaultExtension([In, MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension); void Close(int hr); void SetClientGuid(); // not fully defined void ClearClientData(); void SetFilter([MarshalAs(UnmanagedType.Interface)] IntPtr pFilter); void GetResults([MarshalAs(UnmanagedType.Interface)] out IntPtr ppenum); // not fully defined void GetSelectedItems([MarshalAs(UnmanagedType.Interface)] out IntPtr ppsai); // not fully defined } [ComImport] [Guid("43826D1E-E718-42EE-BC55-A1E261C37BFE")] [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IShellItem { void BindToHandler(); // not fully defined void GetParent(); // not fully defined void GetDisplayName([In] SIGDN sigdnName, [MarshalAs(UnmanagedType.LPWStr)] out string ppszName); void GetAttributes(); // not fully defined void Compare(); // not fully defined } private enum SIGDN : uint { SIGDN_DESKTOPABSOLUTEEDITING = 0x8004c000, SIGDN_DESKTOPABSOLUTEPARSING = 0x80028000, SIGDN_FILESYSPATH = 0x80058000, SIGDN_NORMALDISPLAY = 0, SIGDN_PARENTRELATIVE = 0x80080001, SIGDN_PARENTRELATIVEEDITING = 0x80031001, SIGDN_PARENTRELATIVEFORADDRESSBAR = 0x8007c001, SIGDN_PARENTRELATIVEPARSING = 0x80018001, SIGDN_URL = 0x80068000 } [Flags] private enum FOS { FOS_ALLNONSTORAGEITEMS = 0x80, FOS_ALLOWMULTISELECT = 0x200, FOS_CREATEPROMPT = 0x2000, FOS_DEFAULTNOMINIMODE = 0x20000000, FOS_DONTADDTORECENT = 0x2000000, FOS_FILEMUSTEXIST = 0x1000, FOS_FORCEFILESYSTEM = 0x40, FOS_FORCESHOWHIDDEN = 0x10000000, FOS_HIDEMRUPLACES = 0x20000, FOS_HIDEPINNEDPLACES = 0x40000, FOS_NOCHANGEDIR = 8, FOS_NODEREFERENCELINKS = 0x100000, FOS_NOREADONLYRETURN = 0x8000, FOS_NOTESTFILECREATE = 0x10000, FOS_NOVALIDATE = 0x100, FOS_OVERWRITEPROMPT = 2, FOS_PATHMUSTEXIST = 0x800, FOS_PICKFOLDERS = 0x20, FOS_SHAREAWARE = 0x4000, FOS_STRICTFILETYPES = 4 } #endregion } #endregion } |
然后调用方式：
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FolderBrowserDialogHelper folder = new FolderBrowserDialogHelper(); folder.ShowDialog(this); |
而FolderBrowseDialog普通浏览目录选择文件夹对话框
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var fbd = new FolderBrowserDialog(); fbd.ShowDialog(); |
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2022-11-29 下午4:01
2023-01-29 下午4:22