问题描述
我已将 DropDownList 子类化以添加特定于我的应用程序的功能:
I've subclassed DropDownList to add functionality specific to my application:
public class MyDropDownList : DropDownList
{
...
}
...然后在 Web.Config 中引用它，我认为事情开始出错了:
... then referenced it in Web.Config, which is where I figure things start to go wrong:
<pages theme="Main">
<controls>
<add tagPrefix="bob" tagName="MyDropDownList" src="~/Components/MyDropDownList.cs" />
</controls>
</pages>
我对它的引用不起作用:
my reference to it does not work:
<tr><td>Category</td>
<td><bob:MyDropDownList runat="server" ID="Category"... />
我最好的线索是编译器错误消息:
and my best clue is the complier error message:
"The file 'src' is not a valid [sic] here because it doesn't expose a type."
我认为我在这里误用了有关如何创建 Web 用户控件的知识.我想要做的是在 ASP.NET 页面上引用这个控件，就像我引用父 DropDownList 一样.重构回包含 DropDownList 的 Web 用户控件是不可取的，因为我想对其应用 RequiredFieldValidator.
I figure I'm misapplying knowledge of how to create a Web User Control here. What I want to be able to do is refer to this control on an ASP.NET page just like I would the parent DropDownList. Refactoring back into a Web User Control that contains a DropDownList is not desirable, because I want to apply a RequiredFieldValidator to it.
推荐答案
<pages theme="Main">
<controls>
<add tagPrefix="bob" namespace="MyProject" assembly="MyProject" />
</controls>
</pages>
这应该可以解决问题.
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