如何将 gridview 列绑定到子类值? [英] How do you bind a gridview column to a subclass value?

问题描述

我有一个正在尝试绑定的 ASP.net gridview.我的 DataSource 有一个集合，我绑定到的 2 个列是子类的一部分.我的数据源有一个名为 Staff 的子类，它包含员工信息.绑定字段 SurveyID 和 NumberOfExceptions 绑定良好，但无法绑定 Staff.Name 和 Staff.Office.

I have a ASP.net gridview that I am trying bind to. My DataSource has a collection and 2 of the columns I am binding to are part of a subclass. My DataSource has a subclass called Staff the contains the staff information. The boundfields SurveyID and NumberOfExceptions bind fine, but the Staff.Name and Staff.Office cannot be bound.

asp:BoundField DataField="SurveyID" HeaderText="ID" ...
asp:BoundField DataField="Staff.Name" HeaderText="Name" ...
asp:BoundField DataField="Staff.Office" HeaderText="Office" ...
asp:BoundField DataField="NumberOfExceptions" HeaderText="Exceptions" ...

后面的代码是:

uxSurveyGrid.DataSource = searchResults;
uxSurveyGrid.DataBind();

如果我在后面的代码中输入 searchResults[0].Staff.Name 我可以看到值，为什么运行时无法在 gridview 中评估 Staff.Name?

If I type searchResults[0].Staff.Name in the code behind I can see the value, why is the runtime not being able to evaluate Staff.Name in the gridview?

如何将列绑定到子类值?我是否必须在代码隐藏中执行此操作?

How do you bind the columns to the subclass values? Do I have to do it in codebehind?

任何帮助将不胜感激，

标记.

推荐答案

我相信您可以使用模板字段和标记脚本来使其工作...

I believe you can get this to work using a Template field and a markup scriptlet...

    <asp:TemplateField>
        <ItemTemplate>
            <asp:Label Id="lblSubclassVal" runat="server" Text="<%# DataBinder.Eval(Container.DataItem, "SubClass.PropertyName")%>"></asp:Label>
        </ItemTemplate>
    </asp:TemplateField>

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