Question

So I packed some query results in a viewdata statement.

I can verify the correct number of results are put into the viewdata object in the view with this directive:

@foreach (var action in (List<LemonadeTrader.Models.Message>)ViewData["messages"]) {

When I try to display the results:

@Html.DisplayFor( (LemonTrader.Models.Message)action.msg)   // action.msg should be of type string

It says it couldn’t convert string to LemonTrader.Models.Lemon.

When I cast it as:

@Html.DisplayFor( (string)action.acidity)

It says:

The type arguments for method
‘System.Web.Mvc.Html.DisplayExtensions.DisplayFor(System.Web.Mvc.‌
​HtmlHelper,
System.Linq.Expressions.Expression>)’
cannot be inferred from the usage. Try
specifying the type arguments
explicitly.

Not casting it at all doesn’t work either.

How do I cast the result?

Answer 1

This worked:

@foreach (var action in (List<LemonTrader.Models.Message>)ViewData["lemons"]) {
    <tr>
        <td>
            @Html.Encode( action.acidity)