SILVERLIGHT的LISTBOX数据排序

查了下资料，LISTBOX不带排序功能，所以要从数据源入手，自己实现一个List的Sort方法，主要就是那个icomparer接口的实现。

原文在这里

下面是测试代码，只是简单的对INT进行排序，把那篇文章的内容简化了。熟悉下最基本的实现。

<UserControl x:Class="SL.ListboxSort.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Background="White">
        <ListBox Loaded="LB1_Loaded" x:Name="LB1" Height="300" HorizontalAlignment="Left" VerticalAlignment="Top" Width="130" Margin="120,0,0,0">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Name}" />
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>
</UserControl>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.ComponentModel;
using System.Collections;
using System.Reflection;

namespace SL.ListboxSort
{
    public partial class MainPage : UserControl
    {
         
        
        public MainPage()
        {
            InitializeComponent();
        }

        private void LB1_Loaded(object sender, RoutedEventArgs e)
        {

            //初始化测试数据集
            List<LBData> datalist = new List<LBData>();
            datalist.Add(new LBData(Name="zhang1",20));
            datalist.Add(new LBData(Name = "zhang2", 22));
            datalist.Add(new LBData(Name = "zhang3", 23));
            datalist.Add(new LBData(Name = "zhang4", 24));
            datalist.Add(new LBData(Name = "zhang5", 25));
            datalist.Add(new LBData(Name = "zhang6", 25));
            datalist.Add(new LBData(Name = "zhang7", 1));
            datalist.Add(new LBData(Name = "zhang8", 2));

            //确定自己定义的排序规则
            GComparer<LBData> gc = new GComparer<LBData>();
            datalist.Sort(gc);

            //数据控件绑定
            LB1.ItemsSource = datalist;
        }
    }

    #region 数据集
    public class LBData:INotifyPropertyChanged
    {
        public LBData(string name, int rate)
        {
            Name = name;
            Rate = rate;
        }
        
        public string Name
        {
            get;
            set;
        }
        public int Rate
        { get; set; }

        #region impliment
        public event PropertyChangedEventHandler PropertyChanged;
        private void OnPropertyChanged(string propertyName)
        {
            PropertyChangedEventHandler handler = this.PropertyChanged;
            if (handler != null)
            {
                handler(this, new PropertyChangedEventArgs(propertyName));
            }
        }
        #endregion
    }
    #endregion 

    #region 自定义的一个LIST，因为测试只是最简单的实现，发现没必要用上这个,在资料文章里面这里还提供了升序还是降序排列的功能
    public class Mylist<T> : List<T>
    {
        public void Sort()
        {
            GComparer<T> gc = new GComparer<T>();
            base.Sort(gc);
            
        }
    }
    #endregion

    #region IComparer接口实现，用来自定义排序规则
    public class GComparer<T> : IComparer<T>
    {
        public int Compare(T x, T y)
        {
            PropertyInfo property = typeof(T).GetProperty("Rate");//要包括程序集System.Reflection。Rate是用于在数据集LBDATA里面找到这个属性
            int id1, id2;
            id1 = Convert.ToInt32(property.GetValue(x,null).ToString());
            id2 = Convert.ToInt32(property.GetValue(y, null).ToString());
            //最关键的其实就是这句，前面都是数据的转换
            return id1.CompareTo(id2);
        }
    }
#endregion