<TreeView  x:Name="treeview1" ItemsSource="{Binding TreeData}">
        <TreeView.ItemTemplate>
          <HierarchicalDataTemplate ItemsSource="{Binding Children}">
            <TextBlock Text="{Binding NodeName}"/>
          </HierarchicalDataTemplate>
        </TreeView.ItemTemplate>
      </TreeView>

    public class TreeNode
    {
        public string NodeID { get; set; }
        public string NodeName { get; set; }

        public List<TreeNode> Children { get; set; }
    }

<ListBox ItemsSource="{Binding Provinces}" DisplayMemberPath="ProvinceName"/>

ListBox其实有一个默认的ItemTemplate，它以一个Content控件来显示DisplayMemberPath定义的字段的内容，我们可以自定义ItemTemplate让ListBox显示更多的内容，注意ItemTemplate与DisplayMemberPath不能同时定义

    <ListBox ItemsSource="{Binding Provinces}">
        <ListBox.ItemTemplate>
          <DataTemplate>
            <StackPanel Orientation="Horizontal">
              <TextBlock Text="{Binding ProvinceName}"/>
              <TextBlock Margin="5,0,2,0" Text="省会:"/>
              <TextBlock Text="{Binding Capital}"/>
            </StackPanel>
          </DataTemplate>
        </ListBox.ItemTemplate>
      </ListBox>

Datagrid 的分组绑定：

<UserControl.Resources>
   <CollectionViewSource x:Key="ProductsGroup" Source="{Binding Products}">
    <CollectionViewSource.GroupDescriptions>
     <PropertyGroupDescription PropertyName="ProductDate" />
    </CollectionViewSource.GroupDescriptions>
    <CollectionViewSource.SortDescriptions>
     <scm:SortDescription PropertyName="ProductDate" Direction="Descending" />
     <scm:SortDescription PropertyName="ID" Direction="Ascending" />
    </CollectionViewSource.SortDescriptions>
   </CollectionViewSource>
  </UserControl.Resources>

...
...

<sdk:DataGrid DataContext="{StaticResource ProductsGroup}" AutoGenerateColumns="False" 
                ItemsSource="{Binding}" SelectedItem="{Binding SelectedProduct}" Width="300" >
        <sdk:DataGrid.Columns>
         <sdk:DataGridTextColumn Binding="{Binding ID}" Header="编号" />
         <sdk:DataGridTextColumn Binding="{Binding Name}" Header="名称" />
         <sdk:DataGridTextColumn Binding="{Binding Desc}" Header="说明" />
        </sdk:DataGrid.Columns>
      </sdk:DataGrid>

<Button Content="按钮" Command="{Binding ButtonCommand}"/>

        // 按钮点击命令
        public ICommand ButtonCommand
        {
            get
            {
                return new RelayCommand(
                    () => System.Windows.MessageBox.Show("当前时间：" + System.DateTime.Now.ToString())
                    );
            }
        }

一个 Silverlight 一般只有一个 ViewModelLocator 。

如果是通过MVVM 模板建立的项目，默认就有该文件了。

用到的Code Snape ： mvvmlocatorproperty。

• App.Xaml，先添加ViewModel命名控件引用，然后为ViewModelLocator添加一个全局的资源

    <Application.Resources>
        <vm:ViewModelLocator x:Key="Locator" d:IsDataSource="True" />
    </Application.Resources>

        private void Application_Exit(object sender, EventArgs e)
        {
            ViewModelLocator.Cleanup();
        }

duanzilin的博客  http://blog.csdn.net/duanzilin/article/details/6387639

在这里下载

http://www.livetome.cn/thread-22498-1-1.html

http://hi.baidu.com/greatverve/blog/item/f7e35f0f23c820ea37d12274.html

MSDN