ASP.NET中数据绑定语法<%# %>

<%# %>数据绑定语法都将被生成一个DataBoundLiteralControl类型的控件，并且在DataGrid,Repeater,DataList中多个连续的<%# %>绑定表达式只合并成一个DataBoundLiteralControl控件。

<ItemTemplate>
                                    <tr class="even">
                                        <td width="100"><%# DataItemInfo(Container.DataItem, 1) %>
                                        </td>
                                        <td width="300"><%# DataItemInfo(Container.DataItem, 2) %>
                                            <asp:DropDownList Runat="server"></asp:DropDownList>
                                        </td>
                                        <td width="100"><%# DataItemInfo(Container.DataItem, 3) %>
                                        </td>
                                        <td width="*"><a href="unit_detail.aspx?ID=<%# DataItemInfo(Container.DataItem, 1) %>">修改</a>&nbsp;&nbsp;
                                            <asp:LinkButton CommandArgument="<%# DataItemInfo(Container.DataItem, 1) %>" OnCommand=Delete_Command Runat=server>删除</asp:LinkButton>&nbsp;&nbsp;
                                            <a href='DUserScore.ashx?ID=<%# DataItemInfo(Container.DataItem, 1) %>'>考生成绩报表</a>
                                        </td>
                                    </tr>
                                </ItemTemplate>

后台代码：

foreach(Control c in this.rpUnitlist.Items[0].Controls)
            {
                Response.Write(c.GetType().ToString());
                DataBoundLiteralControl dblc = c as DataBoundLiteralControl;
                if(dblc != null)
                    Response.Write(": " + HttpUtility.HtmlEncode(dblc.Text) + "<br>");
                else
                    Response.Write("<br>");
                            }

输出：

System.Web.UI.DataBoundLiteralControl: <tr class="even"> <td width="100">070001 </td> <td width="300">广州703 
System.Web.UI.WebControls.DropDownList
System.Web.UI.DataBoundLiteralControl: </td> <td width="100">070001 </td> <td width="*"><a href="unit_detail.aspx?ID=070001">修改</a>&nbsp;&nbsp; 
System.Web.UI.WebControls.LinkButton
System.Web.UI.DataBoundLiteralControl: &nbsp;&nbsp; <a href='DUserScore.ashx?ID=070001'>考生成绩报表</a> </td> </tr> 

另外，DataGrid.Items[i].DataItem属性貌似只能在DataGrid的内部事件过程中引用，其他地方引用为空