与Repeater控件ASP.NET 3.5的列数的变量 [英] Variable number of columns with Repeater control ASP.NET 3.5

问题描述

一个页面包含一个转发控制。早些时候，我列的静态绑定数到中继器。例如，我的存储过程将返回姓名，年龄，工资，电话，一个员工的出生日期。所以，我可以使用如下

One of pages contains a Repeater control. Earlier, I bind a static number of columns to the repeater. For example, my stored procedure will return Name,Age,Salary,Phone,DOB of an employee. So I could use like the following

<ItemTemplate>
 <tr>
   <td>
     <asp:Label ID="lblSalary" runat="server" Text='<%#Eval("Salary")%>' ToolTip="Salary"></asp:Label>
   </td>
 </tr>
</ItemTemplate>

立即我要改变设计。我有一个设置页，我会说这列应该在这里列出。有些时候我需要仅列出姓名和年龄等，所以我不能硬code 转发的设计。什么是处理这种情况的最好方法？它的好处是动态的标签添加到该项目模板？

Now I want to change the design. I have a settings page and I will say which columns should be listed here. Some time I need to list only Name and Age etc. So I can not hard code the design of Repeater. What is the best way to handle the situation ? Is it good to dynamically add labels to the item template?

推荐答案

您可以用与使用TemplateFields的GridView。根据设置显示或隐藏的列。在这里，你找到的TemplateField 的文档。

You could use a GridView with TemplateFields. Depending on the settings you show or hide the columns. Here you find a documentation of the TemplateField.

编辑：比直放站更灵活性的另一个控制是的ListView 。

Another control with more flexibility than Repeater is the ListView.

如果你想使用Repeater控件，您可以使用占位符来打开和关闭单个列。只要把每一个列到占位符，并打开和关闭的可见性。取而代之的是占位符，你当然可以用一个用户控件以及。

If you want to use the Repeater Control you can use placeholders to turn on and off single columns. Just put every column into a PlaceHolder and turn on and off the visibility. Instead of a PlaceHolder you can of course use a UserControl as well.

编辑2：与占位符的解决办法是这样的：

EDIT 2: Solution with PlaceHolder could look like this:

<ItemTemplate>
 <tr> 
  <asp:PlaceHolder Visible="<%# IsSalaryVisible %>" runat="server"> 
     <td> 
       <asp:Label ID="lblSalary" runat="server" Text='<%#Eval("Salary")%>' ToolTip="Salary"></asp:Label> 
     </td> 
   </asp:PlaceHolder>
  <asp:PlaceHolder Visible="<%# IsNameVisible %>" runat="server"> 
     <td> 
       <asp:Label ID="lblSalary" runat="server" Text='<%#Eval("Name")%>' ToolTip="Salary"></asp:Label> 
     </td> 
   </asp:PlaceHolder>
  </tr> 
</ItemTemplate> 

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