DataColumn放置DataTable问题


  private void BindInfo()
        {
            DataTable table = new DataTable("tableName");
            table.Columns.Add(new DataColumn("ID"));
            table.Columns.Add(new DataColumn("Name"));
            table.Columns.Add(new DataColumn("Table"));
            
            DataRow dr = table.NewRow();
            dr["ID"] = "aaa";
            dr["Name"] = "Name";
            dr["Table"] = CreateTable();
            table.Rows.Add(dr);            this.Repeater1.DataSource = table;
            this.Repeater1.DataBind();
        }
        private DataTable CreateTable()
        { 
            DataTable table = new DataTable("tableName");
            table.Columns.Add(new DataColumn("ID"));
            table.Columns.Add(new DataColumn("Name"));            DataRow dr = table.NewRow();
            dr["ID"] = "aaa";
            dr["Name"] = "Name";
            table.Rows.Add(dr);
            return table;
        }        protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            RepeaterItem item = e.Item;
            if (item.ItemType == ListItemType.AlternatingItem || item.ItemType == ListItemType.Item)
            {
                DataRowView dr = item.DataItem as DataRowView;
//为什么这里取到的DataTable是null呢？
                DataTable dt = dr["Table"] as DataTable;            }
        }