Question

I have a VB.NET MVC application and there I have the next code:

<%=Html.EditorFor(Function(m) m.UserName, New With {.class = "someClassName"})%>

which works fine on my dev machine, but returns this error after publishing the application to a QA server:

Compiler Error Message: BC30311: Value
of type ‘ (line 91)’
cannot be converted to ‘String’.

Also if I remove the second param in EditorFor method, it works, e.g.:

<%=Html.EditorFor(Function(m) m.UserName)%>

The error is same for Editor method.

Any ideas?

This is MVC 2 application on .NET 3.5

Update:

The problem not in name of the ‘class’ attribute in this case, as I checked other attributes as well without success.

Answer 1

The method EditorFor doesn’t have the overload you are using.

The ones that have two arguments are:

EditorFor(Expression<Func<TModel, TValue>>, Object)

where the object is additional view data.

EditorFor(Expression<Func<TModel, TValue>>, String)

where the string is the template name.

The sad thing is that there isn’t any overload that lets you add html attributes.