SilverLight DataGrid 自定义列数据绑定 上下文代理器 DataContextProxy

public class DataContextProxy : FrameworkElement

    {

        public DataContextProxy()

        {

            this.Loaded += new RoutedEventHandler(DataContextProxy_Loaded);

        }



        void DataContextProxy_Loaded(object sender, RoutedEventArgs e)

        {

            Binding binding = new Binding();

            if (!String.IsNullOrEmpty(BindingPropertyName))

            {

                binding.Path = new PropertyPath(BindingPropertyName);

            }

            binding.Source = this.DataContext;

            binding.Mode = BindingMode;

            this.SetBinding(DataContextProxy.DataSourceProperty, binding);

        }



        public Object DataSource

        {

            get { return (Object)GetValue(DataSourceProperty); }

            set { SetValue(DataSourceProperty, value); }

        }



        public static readonly DependencyProperty DataSourceProperty =

            DependencyProperty.Register("DataSource", typeof(Object), typeof(DataContextProxy), null);





        public string BindingPropertyName { get; set; }



        public BindingMode BindingMode { get; set; }



    }