windows phone 中ListBox采用多模板

项目中有要用到一个ListBox里面多个模板的地方．查了查资料，还真有实现的方法．给出代码：

ps:因为是测试，所以就没有注意命名什么的，大家请原谅

1:MultiTemplatedListBox 

　继承自ListBox,在PrepareContainerForItemOverride阶段检查数据，以决定选用哪一个模板

 public class MultiTemplatedListBox : ListBox
    {
        public DataTemplate ListItemTemplate1 { get; set; }
        public DataTemplate ListItemTemplate2 { get; set; }

        public MultiTemplatedListBox() : base() { }

        DataTemplate SelectTemplate(MultiTemplatedListBoxData data)
        {
            if (data.TemplateOrder == 1)
                return ListItemTemplate1;
            else
                return ListItemTemplate2;
        }

        protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
        {
            base.PrepareContainerForItemOverride(element, item);
            ListBoxItem listBoxItem = element as ListBoxItem;

            if (listBoxItem != null)
            {
                listBoxItem.ContentTemplate = SelectTemplate((MultiTemplatedListBoxData)item);
            }
        }
    }

2: MultiTemplatedListBoxData  用以决定选用模板的基类

 public class MultiTemplatedListBoxData
    {
        public int TemplateOrder { get; set; }
        public MultiTemplatedListBoxData()
        {
            TemplateOrder = 1;
        }
    }

3:测试页面XAML

  <lc:MultiTemplatedListBox x:Name="Test">
            <lc:MultiTemplatedListBox.ListItemTemplate1>
                <DataTemplate>
                    <Grid Background="Red">
                        <TextBlock Text="{Binding Name1}"></TextBlock>
                    </Grid>
                </DataTemplate>
            </lc:MultiTemplatedListBox.ListItemTemplate1>
            <lc:MultiTemplatedListBox.ListItemTemplate2>
                <DataTemplate>
                    <Grid Background="Blue">
                        <TextBlock Text="{Binding Name2}"></TextBlock>
                    </Grid>
                </DataTemplate>
            </lc:MultiTemplatedListBox.ListItemTemplate2>
        </lc:MultiTemplatedListBox>

4:测试代码

 public partial class AATest: PhoneApplicationPage
    {
        public AATest()
        {
            InitializeComponent();
            List<MultiTemplatedListBoxData> aa = new List<MultiTemplatedListBoxData>();
            for (int i = 0; i < 10; i++)
            {
                if (i % 2 == 0)
                    aa.Add(new Test1() { TemplateOrder = 1, Name1 = i.ToString() + " Name1!!!" });
                else
                    aa.Add(new Test2() { TemplateOrder = 2, Name2 = i.ToString() + " Name2!!!" });
            }
            this.Test.ItemsSource = aa;
        }
    }

    public class Test1 : MultiTemplatedListBoxData
    {
        public string Name1 { get; set; }
    }

    public class Test2 : MultiTemplatedListBoxData
    {
        public string Name2 { get; set; }
    }

测试结果如下：