Implementing Drop down list in c# using MVC-spark

Question

Controller Code:

List Months = new List();

        Months.Add("Jan");
        Months.Add("Feb");

    ViewData["Months"] = new SelectList(Months);

${Html.DropDownList((SelectList)ViewData["Months"])}

Error: Argument 2: cannot convert from 'System.Web.Mvc.SelectList' to 'string'

What is `List Months = new List();`? I don't think that's valid c# — Forty-Two, Dec 28 '12 at 14:47

Syneryx · Answer 1 · 2013-12-06T13:58:59.710

0

The error is pretty clear, it states that it expects a type of string and you are passing a SelectList make sure you use the correct overloads.

@Html.DropDownList("Months",selectList: ((SelectList)ViewData["Months"]))

edited Dec 06 '13 at 13:58

answered Dec 28 '12 at 10:56

Syneryx

I tried this but still getting the error : 'System.Web.Mvc.HtmlHelper does not contain a definition for 'DropDownList' and the best extension method overload 'System.Web.Mvc.Html.SelectExtensions.DropDownList(System.Web.Mvc.HtmlHelper, string, string)' has some invalid arguments error CS1503: Argument 3: cannot convert from 'object' to 'string''System.Web.Mvc.Html.SelectExtensions.DropDownList(System.Web.Mvc.HtmlHelper, string, string)' has some invalid arguments error CS1503: Argument 3: cannot convert from 'object' to 'string' – webtester Dec 28 '12 at 11:01
I unfortunately do not have the mvc-spark view engine installed. but i'm assuming that you are still not using the correct overloads. try to find one which allows you to pass a SelectList(). – Syneryx Dec 28 '12 at 11:06
As per my understanding dropDownList do accept(System.Web.Mvc.HtmlHe‌lper, string) as the parameters and in our example ViewData acts as kind of HtmlHelper. – webtester Dec 28 '12 at 11:11
still Not working...Error: Cannot convert from 'object' to 'string' – webtester Dec 28 '12 at 11:24

1 Answers1