如何在MVC2中将数据从子视图传递到父视图？

Question

Using .Net MVC2, I would like to pass information from a child view to its parent view. Initially, I thought I could use the ViewData collection, but this seems to only work in one direction: from the parent to the child.

Below is a simplified version of what I am attempting in an effort to pass data from the child view back to the parent view. When running the Visual Studio debugger, I see the ViewData dictionary while stepping through both the parent and child views. But the statement which should add an item to the dictionary in the child view does not seem to work. After returning to the parent view, the ViewData dictionary appears the same as before calling the child.

In the parent view:

<div>
    <%
        List<People> ManagerList = ViewData["ManagerList"];
        ViewData["Section"] = "Managers";
        Html.RenderPartial("OrgTable", ManagerList);
        bool didTableRenderAnyRecords = ViewData["TableResult"];
    %>
</div>
...
<div>
    <%
        if (!didTableRenderAnyRecords) {
    %>
    <p>Sorry, no records found</p>
    <%
        }
    %>
</div>

In the child view

<table>
    <thead> ... </thead>
    <tbody>
    <%
        bool validRecordDisplayed = false;
        foreach(var manager in Model) {
            if (manager != null) {
               validRecordDisplayed = true;
    %>
    <tr> ... </tr>
    <%
            }
        }
        ViewData["TableResult"] = validRecordDisplayed;
    %>
    </tbody>
</table>

Answer 1

I think you can use ViewBag.SomeProperty here. You can also try and use MVC sections (although I am not sure if those are available in MVC2).