选择文件夹时可以再导航来输入路径

Form1.cs

@@ -11,6 +11,7 @@ using System.Threading.Tasks;
 using System.Windows.Forms;
 using System.Xml;
 using Newtonsoft.Json;
+using Microsoft.WindowsAPICodePack.Dialogs;
 
 namespace MD5Create
 {
@@ -49,13 +50,22 @@ namespace MD5Create
 
         private void Choose1_Button_Click(object sender, EventArgs e)
         {
-            folderBrowserDialog1.Description = "请选择文件夹";
+            // 使用 Windows API Code Pack 中的 CommonOpenFileDialog，开启文件夹选择模式
-            folderBrowserDialog1.RootFolder = Environment.SpecialFolder.MyComputer;
+            using (var dialog = new CommonOpenFileDialog())
-            folderBrowserDialog1.ShowNewFolderButton = true;
-            if (Path1_Box.Text.Length > 0) folderBrowserDialog1.SelectedPath = Path1_Box.Text;
-            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
             {
-                Path1_Box.Text = folderBrowserDialog1.SelectedPath;
+                dialog.Title = "请选择文件夹";
+                dialog.IsFolderPicker = true;       // 文件夹选择模式
+                dialog.AllowNonFileSystemItems = false;
+
+                if (!string.IsNullOrWhiteSpace(Path1_Box.Text) && Directory.Exists(Path1_Box.Text))
+                {
+                    dialog.InitialDirectory = Path1_Box.Text;  // 打开到当前路径
+                }
+
+                if (dialog.ShowDialog() == CommonFileDialogResult.Ok)
+                {
+                    Path1_Box.Text = dialog.FileName; // 选择的文件夹路径
+                }
             }
         }
 

MD5Create.csproj

@@ -33,6 +33,12 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="Microsoft.WindowsAPICodePack, Version=1.1.2.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\WindowsAPICodePack-Core.1.1.2\lib\Microsoft.WindowsAPICodePack.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.WindowsAPICodePack.Shell, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\WindowsAPICodePack-Shell.1.1.1\lib\Microsoft.WindowsAPICodePack.Shell.dll</HintPath>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>packages\Newtonsoft.Json.13.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>

packages.config

@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Newtonsoft.Json" version="13.0.3" targetFramework="net472" />
+  <package id="WindowsAPICodePack-Core" version="1.1.2" targetFramework="net472" />
+  <package id="WindowsAPICodePack-Shell" version="1.1.1" targetFramework="net472" />
 </packages>