我希望用户选择一个目录，我将生成的文件将保存在其中。我知道在WPF中，我应该使用Win32中的OpenFileDialog，但不幸的是，对话框需要选择文件-如果我只是单击确定而不选择一个，它就会保持打开。我可以通过让用户选择一个文件，然后剥离路径以找出它属于哪个目录来“hack”该功能，但这充其量是不直观的。有人见过这种情况吗?
当前回答
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();
}
}
}
}
其他回答
为此，您可以使用内置的FolderBrowserDialog类。不要介意它在System.Windows.Forms命名空间中。
using (var dialog = new System.Windows.Forms.FolderBrowserDialog())
{
System.Windows.Forms.DialogResult result = dialog.ShowDialog();
}
如果你想让窗口在某些WPF窗口上是模态的，请参阅如何从WPF应用程序中使用FolderBrowserDialog问题。
编辑:如果你想要一些比普通的、丑陋的Windows窗体文件夹浏览器对话框更花哨的东西，有一些选择允许你使用Vista对话框:
第三方库，如Ookii对话框(。NET 4.5 +) Windows API代码包- shell: 使用Microsoft.WindowsAPICodePack.Dialogs; .．. var dialog = new CommonOpenFileDialog(); 对话框。IsFolderPicker = true; commonfiledialgresult result = dialog.ShowDialog(); 注意，这个对话框在Windows Vista之前的操作系统上是不可用的，所以一定要检查CommonFileDialog。IsPlatformSupported第一。
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();
}
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace Gearplay
{
/// <summary>
/// Логика взаимодействия для OpenFolderBrows.xaml
/// </summary>
public partial class OpenFolderBrows : Page
{
internal string SelectedFolderPath { get; set; }
public OpenFolderBrows()
{
InitializeComponent();
Selectedpath();
InputLogicalPathCollection();
}
internal void Selectedpath()
{
Browser.Navigate(@"C:\");
Browser.Navigated += Browser_Navigated;
}
private void Browser_Navigated(object sender, NavigationEventArgs e)
{
SelectedFolderPath = e.Uri.AbsolutePath.ToString();
//MessageBox.Show(SelectedFolderPath);
}
private void MenuItem_Click(object sender, RoutedEventArgs e)
{
}
string [] testing { get; set; }
private void InputLogicalPathCollection()
{ // add Menu items for Cotrol
string[] DirectoryCollection_Path = Environment.GetLogicalDrives(); // Get Local Drives
testing = new string[DirectoryCollection_Path.Length];
//MessageBox.Show(DirectoryCollection_Path[0].ToString());
MenuItem[] menuItems = new MenuItem[DirectoryCollection_Path.Length]; // Create Empty Collection
for(int i=0;i<menuItems.Length;i++)
{
// Create collection depend how much logical drives
menuItems[i] = new MenuItem();
menuItems[i].Header = DirectoryCollection_Path[i];
menuItems[i].Name = DirectoryCollection_Path[i].Substring(0,DirectoryCollection_Path.Length-1);
DirectoryCollection.Items.Add(menuItems[i]);
menuItems[i].Click += OpenFolderBrows_Click;
testing[i]= DirectoryCollection_Path[i].Substring(0, DirectoryCollection_Path.Length - 1);
}
}
private void OpenFolderBrows_Click(object sender, RoutedEventArgs e)
{
foreach (string str in testing)
{
if (e.OriginalSource.ToString().Contains("Header:"+str)) // Navigate to Local drive
{
Browser.Navigate(str + @":\");
}
}
}
private void Goback_Click(object sender, RoutedEventArgs e)
{// Go Back
try
{
Browser.GoBack();
}catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void Goforward_Click(object sender, RoutedEventArgs e)
{ //Go Forward
try
{
Browser.GoForward();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void FolderForSave_Click(object sender, RoutedEventArgs e)
{
// Separate Click For Go Back same As Close App With send string var to Main Window ( Main class etc.)
this.NavigationService.GoBack();
}
}
}
Ookii VistaFolderBrowserDialog就是你想要的。
如果你只想要Ooki对话框中的文件夹浏览器，然后下载源代码，为文件夹浏览器挑选你需要的文件(提示:7个文件)，它可以在。net 4.5.2中构建。我必须给System.Drawing添加一个引用。将原项目中的参考资料与你的进行比较。
如何确定哪些文件?在不同的Visual Studio实例中打开你的应用程序和Ookii。将VistaFolderBrowserDialog.cs添加到应用程序中，并继续添加文件，直到构建错误消失。你在Ookii项目中找到依赖项-控制-单击你想要跟踪到它的源(双关语)。
如果你懒得这么做，这里有你需要的文件……
NativeMethods.cs
SafeHandles.cs
VistaFolderBrowserDialog.cs
\ Interop
COMGuids.cs
ErrorHelper.cs
ShellComInterfaces.cs
ShellWrapperDefinitions.cs
编辑VistaFolderBrowserDialog.cs中的第197行，除非你想包含它们的资源。Resx
抛出新的InvalidOperationException(Properties.Resources.FolderBrowserDialogNoRootFolder);
throw new InvalidOperationException("Unable to retrieve the root folder.");
根据他们的license.txt将他们的版权声明添加到你的应用中
在\Ookii.Dialogs.Wpf.Sample\MainWindow.xaml.cs第160-169行代码是一个例子，你可以使用，但你需要删除这个，从MessageBox。显示(这个，用于WPF。
在我的机器上工作
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>
