我在下面的链接上找到了下面的代码…这个方法奏效了 选择文件夹对话框WPF

using Microsoft.WindowsAPICodePack.Dialogs;

var dlg = new CommonOpenFileDialog();
dlg.Title = "My Title";
dlg.IsFolderPicker = true;
dlg.InitialDirectory = currentDirectory;

dlg.AddToMostRecentlyUsedList = false;
dlg.AllowNonFileSystemItems = false;
dlg.DefaultDirectory = currentDirectory;
dlg.EnsureFileExists = true;
dlg.EnsurePathExists = true;
dlg.EnsureReadOnly = false;
dlg.EnsureValidNames = true;
dlg.Multiselect = false;
dlg.ShowPlacesList = true;

if (dlg.ShowDialog() == CommonFileDialogResult.Ok) 
{
  var folder = dlg.FileName;
  // Do something with selected folder string
}

Ookii对话框包括一个选择文件夹(而不是文件)的对话框:

https://github.com/ookii-dialogs

我创建了一个UserControl，它是这样使用的:

  <UtilitiesWPF:FolderEntry Text="{Binding Path=LogFolder}" Description="Folder for log files"/>

xaml源代码如下所示:

<UserControl x:Class="Utilities.WPF.FolderEntry"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <DockPanel>
        <Button Margin="0" Padding="0" DockPanel.Dock="Right" Width="Auto" Click="BrowseFolder">...</Button>
        <TextBox Height="Auto" HorizontalAlignment="Stretch" DockPanel.Dock="Right" 
           Text="{Binding Text, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}}" />
    </DockPanel>
</UserControl>

还有隐藏代码

public partial class FolderEntry {
    public static DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(FolderEntry), new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));
    public static DependencyProperty DescriptionProperty = DependencyProperty.Register("Description", typeof(string), typeof(FolderEntry), new PropertyMetadata(null));

    public string Text { get { return GetValue(TextProperty) as string; } set { SetValue(TextProperty, value); }}

    public string Description { get { return GetValue(DescriptionProperty) as string; } set { SetValue(DescriptionProperty, value); } }

    public FolderEntry() { InitializeComponent(); }

    private void BrowseFolder(object sender, RoutedEventArgs e) {
        using (FolderBrowserDialog dlg = new FolderBrowserDialog()) {
            dlg.Description = Description;
            dlg.SelectedPath = Text;
            dlg.ShowNewFolderButton = true;
            DialogResult result = dlg.ShowDialog();
            if (result == System.Windows.Forms.DialogResult.OK) {
                Text = dlg.SelectedPath;
                BindingExpression be = GetBindingExpression(TextProperty);
                if (be != null)
                    be.UpdateSource();
            }
        }
    }
 }

我知道这是一个老问题，但一个简单的方法是使用WPF提供的FileDialog选项，并使用System.IO.Path.GetDirectory(filename)。

我在下面的链接上找到了下面的代码…这个方法奏效了 选择文件夹对话框WPF

using Microsoft.WindowsAPICodePack.Dialogs;

var dlg = new CommonOpenFileDialog();
dlg.Title = "My Title";
dlg.IsFolderPicker = true;
dlg.InitialDirectory = currentDirectory;

dlg.AddToMostRecentlyUsedList = false;
dlg.AllowNonFileSystemItems = false;
dlg.DefaultDirectory = currentDirectory;
dlg.EnsureFileExists = true;
dlg.EnsurePathExists = true;
dlg.EnsureReadOnly = false;
dlg.EnsureValidNames = true;
dlg.Multiselect = false;
dlg.ShowPlacesList = true;

if (dlg.ShowDialog() == CommonFileDialogResult.Ok) 
{
  var folder = dlg.FileName;
  // Do something with selected folder string
}

看来微软。Win32 . net库不支持选择文件夹(只支持文件)，所以你在WPF中运气不好(截至2022年7月)。我觉得现在最好的选择是WPF的Ookii: https://github.com/ookii-dialogs/ookii-dialogs-wpf。它工作得很好，正如预期的那样，在WPF减去微软的支持。你可以把它作为NuGet包来获取。XAML视图背后的代码:

public partial class ExportRegionView : UserControl
{
    public ExportRegionView()
    {
        InitializeComponent();
    }
    private void SavePath(object sender, RoutedEventArgs e)
    {
        var dialog = new Ookii.Dialogs.Wpf.VistaFolderBrowserDialog();
        dialog.Description = "SIPAS Export Folder";
        dialog.UseDescriptionForTitle = true;
        if (dialog.ShowDialog().GetValueOrDefault())
        {
            ExportPath.Text = dialog.SelectedPath;
        }
    }
}

XAML: <Button Grid.Row="1" Grid.Column="3" Style="{DynamicResource Esri_Button}" Click="SavePath" Margin="5,5,5,5">Path</Button>