I have an edit page with a Html.DropDownList in it....I cant show the dropdownlist value it always shows up with Select instead i want to make the dropdown show an item as selected based on a model value say Model.Mes_Id... Any suggestion how it can be done...

       <p>
            <label for="MeasurementTypeId">MeasurementType:</label>
         <%= Html.DropDownList("MeasurementType", // what should i give here?)%>
            <%= Html.ValidationMessage("MeasurementTypeId", "*") %>
        </p>

EDIT: It has the list items but i want to show a value selected in the edit view...

   public ActionResult Edit(int id)
    {
        var mesurementTypes = consRepository.FindAllMeasurements();
        ViewData["MeasurementType"] = mesurementTypes;
        var material = consRepository.GetMaterial(id);
        return View("Edit", material);
    }