保存文件打开文件对话框

WPF中文件浏览对话框的实现可以利用Windows API Code Pack，它是一个用于访问Windows Vista/7 特性的托管代码函数库，但并没有包含在.NET 4.0中。

该代码包的特性如下所示：

• 支持Windows Shell命名空间对象，包括新的Windows 7资源库（Libraries）、固定名称文件夹和非文件系统容器。
• Windows Vista和Windows 7任务对话框（Task Dialogs）。
• 支持WPF和Windows Forms的Windows 7资源管理器浏览器控件（Explorer Browser Control）。
• 支持Shell的属性系统。
• 用于Windows 7任务栏Jumplists、Icon Overlay和Progress Bar的帮助程序。
• 支持Windows Vista和Windows 7的通用文件对话框，并包括了自定义文件对话框控件。
• 支持Direct3D 11.0和DXGI 1.0/1.1的API。
• 传感器平台（Sensor Platform）API
• 扩展的语言服务（Extended Linguistic Services）API。

1：代码包下载之后，解压，将其中的Microsoft.WindowsAPICodePack.dll 和Microsoft.WindowsAPICodePack.Shell.dll拷贝至工程中。然后Reference-->Add将其添加至Project中的References。

2：代码编写时，将其导入命名空间：

[css] view plain copy

 01.using Microsoft.WindowsAPICodePack.Shell;  
02.using Microsoft.WindowsAPICodePack.Dialogs; 

3：前台xmal代码如下

  
05.      
06.          
07.          
08.      
09.  

4：后台xmal.cs代码如下：

using System;  
02.using System.Collections.Generic;  
03.using System.Linq;  
04.using System.Text;  
05.using System.Windows;  
06.using System.Windows.Controls;  
07.using System.Windows.Data;  
08.using System.Windows.Documents;  
09.using System.Windows.Input;  
10.using System.Windows.Media;  
11.using System.Windows.Media.Imaging;  
12.using System.Windows.Navigation;  
13.using System.Windows.Shapes;  
14.  
15.using System.ComponentModel;    
16.using Microsoft.WindowsAPICodePack.Shell;  
17.using Microsoft.WindowsAPICodePack.Dialogs;  
18.  
19.namespace WpfFileExploerDialog  
20.{  
21.    /// 
  
22.    /// Interaction logic for MainWindow.xaml  
23.    /// 
  
24.    public partial class MainWindow : Window, INotifyPropertyChanged    
25.    {  
26.        public MainWindow()  
27.        {  
28.            InitializeComponent();  
29.            Grid1.DataContext = this;   
30.        }  
31.  
32.  
33.        public event PropertyChangedEventHandler PropertyChanged;  
34.  
35.        protected void NotifyPropertyChanged(string property)  
36.        {  
37.            if (PropertyChanged != null)  
38.            {  
39.                PropertyChanged(this, new PropertyChangedEventArgs(property));  
40.            }  
41.        }  
42.  
43.        private string _Value2;  
44.  
45.        public string TextBoxValue  
46.        {  
47.            get { return _Value2; }  
48.            set  
49.            {  
50.                if (value != _Value2)  
51.                {  
52.                    _Value2 = value;  
53.                    NotifyPropertyChanged("TextBoxValue");  
54.                }  
55.            }  
56.        }    
57.  
58.        private void ButtonFileSelect(object sender, RoutedEventArgs e)  
59.        {  
60.            ShellContainer selectedFolder = null;  
61.            selectedFolder = KnownFolders.Computer as ShellContainer;  
62.            CommonOpenFileDialog commonOpenFileDialog = new CommonOpenFileDialog();  
63.            commonOpenFileDialog.InitialDirectoryShellContainer = selectedFolder;  
64.            commonOpenFileDialog.EnsureReadOnly = true;  
65.  
66.  
67.            if (commonOpenFileDialog.ShowDialog() == CommonFileDialogResult.Ok)  
68.            {  
69.                TextBoxValue = commonOpenFileDialog.FileName;  
70.            }  
71.        }  
72.    }  
73.}  

5：程序运行结果如下：

另外，还可以将文件浏览窗口直接定位到固定的文件夹，并且添加想要的文件过滤器，例如下面的代码就是将其定位到SampleVideos文件夹：

using System;  
02.using System.Collections.Generic;  
03.using System.Linq;  
04.using System.Text;  
05.using System.Windows;  
06.using System.Windows.Controls;  
07.using System.Windows.Data;  
08.using System.Windows.Documents;  
09.using System.Windows.Input;  
10.using System.Windows.Media;  
11.using System.Windows.Media.Imaging;  
12.using System.Windows.Navigation;  
13.using System.Windows.Shapes;  
14.  
15.using System.ComponentModel;    
16.using Microsoft.WindowsAPICodePack.Shell;  
17.using Microsoft.WindowsAPICodePack.Dialogs;  
18.  
19.namespace WpfFileExploerDialog  
20.{  
21.    /// 
  
22.    /// Interaction logic for MainWindow.xaml  
23.    /// 
  
24.    public partial class MainWindow : Window, INotifyPropertyChanged    
25.    {  
26.        public MainWindow()  
27.        {  
28.            InitializeComponent();  
29.            Grid1.DataContext = this;   
30.        }  
31.  
32.  
33.        public event PropertyChangedEventHandler PropertyChanged;  
34.  
35.        protected void NotifyPropertyChanged(string property)  
36.        {  
37.            if (PropertyChanged != null)  
38.            {  
39.                PropertyChanged(this, new PropertyChangedEventArgs(property));  
40.            }  
41.        }  
42.  
43.        private string _Value2;  
44.  
45.        public string TextBoxValue  
46.        {  
47.            get { return _Value2; }  
48.            set  
49.            {  
50.                if (value != _Value2)  
51.                {  
52.                    _Value2 = value;  
53.                    NotifyPropertyChanged("TextBoxValue");  
54.                }  
55.            }  
56.        }    
57.  
58.        private void ButtonFileSelect(object sender, RoutedEventArgs e)  
59.        {  
60.            ShellContainer selectedFolder = null;  
61.  
62.            //文件夹定位至SampleVideos  
63.            selectedFolder = KnownFolders.SampleVideos as ShellContainer;  
64.            CommonOpenFileDialog commonOpenFileDialog = new CommonOpenFileDialog();  
65.            commonOpenFileDialog.InitialDirectoryShellContainer = selectedFolder;  
66.            commonOpenFileDialog.EnsureReadOnly = true;  
67.  
68.            //设置文件过滤  
69.            commonOpenFileDialog.Filters.Add(new CommonFileDialogFilter("WMV Files", "*.wmv"));  
70.            commonOpenFileDialog.Filters.Add(new CommonFileDialogFilter("AVI Files", "*.avi"));  
71.            commonOpenFileDialog.Filters.Add(new CommonFileDialogFilter("MP3 Files", "*.mp3"));  
72.            commonOpenFileDialog.Filters.Add(new CommonFileDialogFilter("MKV Files", "*.mkv"));  
73.  
74.            if (commonOpenFileDialog.ShowDialog() == CommonFileDialogResult.Ok)  
75.            {  
76.                TextBoxValue = commonOpenFileDialog.FileName;  
77.            }  
78.        }  
79.    }  
80.}