wpf选取文件夹的控件

 

在 《wpf揭秘》这本书里有类似的控件。

.cs文件

using System;
using System.Windows;
using System.Windows.Controls;
using Microsoft.Win32;


namespace Chapter16
{
    [System.Windows.Markup.ContentProperty("FileName")]
    public partial class FileInputBox : UserControl
    {
        public FileInputBox()
        {
            InitializeComponent();
            theTextBox.TextChanged += new TextChangedEventHandler(OnTextChanged);
        }


        private void theButton_Click(object sender, RoutedEventArgs e)
        {
            OpenFileDialog d = new OpenFileDialog();
            if (d.ShowDialog() == true) // Result could be true, false, or null
                this.FileName = d.FileName;
        }
        
        public string FileName
        {
            get { return (string)GetValue(FileNameProperty); }
            set { SetValue(FileNameProperty, value); }
        }
        
        private void OnTextChanged(object sender, TextChangedEventArgs e)
        {
            e.Handled = true;
            RoutedEventArgs args = new RoutedEventArgs(FileNameChangedEvent);
            RaiseEvent(args);
        }
        
        public event RoutedEventHandler FileNameChanged
        {
            add { AddHandler(FileNameChangedEvent, value); }
            remove { RemoveHandler(FileNameChangedEvent, value); }
        }
        
        public static readonly DependencyProperty FileNameProperty =
           DependencyProperty.Register("FileName", typeof(string), typeof(FileInputBox));
        
        public static readonly RoutedEvent FileNameChangedEvent =
            EventManager.RegisterRoutedEvent("FileNameChanged",
            RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(FileInputBox));
    }
}

.xaml文件

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Name="root">
 
    Browse...
   
 

这个控件可以直接拿来用。它是选择文件的，我们需要修改函数

        private void theButton_Click(object sender, RoutedEventArgs e)
        {

            FolderBrowserDialog folderBrowserDialog = new FolderBrowserDialog();

            if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
            {
                this.FileName = folderBrowserDialog.SelectedPath;
            }
        }

FolderBrowserDialog 是using System.Windows.Forms;的一个控件。

关于这dialog在http://www.cnblogs.com/wdhust/archive/2010/06/07/1753200.html有详细说明。