asp.net-mvc - Remote validation asp.net mvc

Question

I am new in mvc so forgive me if the question is stupid but I want to do the best I can. So, my situation is that: I have created a model and decorated like

Partial Public Class App_Modules

    <Required>
    <Remote("CheckForDuplicate", "Validation")>
    <Display(Name:="Code")>
    Public Property code As String

    <Required>
    <Display(Name:="Description")>
    Public Property name As String


End Class

As you can see, the code column must be remote validated. In my ValidationController I have the code

     Public Function CheckForDuplicate(code As String) As JsonResult
         Dim data = db.App_Modules.Where(Function(p) p.code.Equals(code, StringComparison.CurrentCultureIgnoreCase)).FirstOrDefault()

         If data IsNot Nothing Then
             Return Json("This code already exists",JsonRequestBehavior.AllowGet)
         Else
             Return Json(True, JsonRequestBehavior.AllowGet)
         End If
     End Function
 End Class

Everything works fine! Now I want to do the same for another model with the same field "code". Is there any way to pass the model name to the function so instead of the line

 Dim data = db.**App_Modules**.Where(Function(p) p.code.Equals(code, StringComparison.CurrentCultureIgnoreCase)).FirstOrDefault()

I could have something like

Dim data = db.**TABLENAME**.Where(Function(p) p.code.Equals(code,  StringComparison.CurrentCultureIgnoreCase)).FirstOrDefault()

So the function would be generic and can be called from other models too?