Backup/MyFriends/Windows/OptionsWindow.xaml.cs

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using System;
using System.IO;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.Linq;
using System.Data.Linq;
using System.Xml.Linq;

namespace MyFriends
{
	public partial class OptionsWindow
    {
        #region Instance Fields
        private object dummyNode = null;
        #endregion
        #region Ctor
        public OptionsWindow()
		{
			this.InitializeComponent();
        }
        #endregion
        #region Public Properties
        public string SelectedImagePath { get; set; }
        public DisplayStyle CurrentDisplayStyle { private get; set; }
        #endregion
        #region Private Methods
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            foreach (string s in Directory.GetLogicalDrives())
            {//遍历本地硬盘的驱动器列表
                TreeViewItem item = new TreeViewItem();
                item.Header = s;//指定Header为驱动器名称
                item.Tag = s;
                item.FontWeight = FontWeights.Normal;
                item.Items.Add(dummyNode);//dummyNode是一个占位符，用于显示一个+号
                //当单击展开的+号时，触发Expanded事件
                item.Expanded += new RoutedEventHandler(folder_Expanded);
                foldersItem.Items.Add(item);//添加到集合中
            }
            (foldersItem.Items[0] as TreeViewItem).IsSelected = true;
            //初始化设置正确的显示样式单选按钮
            switch (CurrentDisplayStyle)
            {
                case DisplayStyle.ThreeDimension:
                    threeD.IsChecked = true;
                    break;
                case DisplayStyle.GrowShrink:
                    GrowAndShrink.IsChecked = true;
                    break;
            }
        }

        private void folder_Expanded(object sender, RoutedEventArgs e)
        {
            TreeViewItem item = (TreeViewItem)sender;//获取TreeViewItem