Question

i made an easy web user control by reading Scottgu articles

BUT; my user control return to me error:

CountryDropDown.ascx:

<%@ Language="C#" Inherits="System.Web.Mvc.ViewUserControl<string>" %>
<%=ViewData["countries"] = new string[] { "France", "Germany", "US", "UK" })%>
<%var q = ViewData["countries"]; %>
<%= Html.DropDownList("",ViewData["countries"] as SelectList)%>

MY VİEW : <%= Html.EditorFor(c=>c.Country,”CountryDropDown”) %>

MODEL:

   public class Customer
{
    [Required(ErrorMessage="NameRequired")]
    [StringLength(50,ErrorMessage="Must be less than 50")]
    public string Name { get; set; }
    [Range(1,20,ErrorMessage="Invalid Age")]
    public int Age { get; set; }
    [Required(ErrorMessage="Email Required")]
    [RegularExpression(@"((\(\d{3}\) ?)|(\d{3}-))?\d{3}-\d{4}")]
    public string Email { get; set; }
    [UIHint("CountryDropDown")]
    public string Country { get; set; }
}

how to make a ASCX in mvc with dropdownlist?

Answer 1

Using <%= tells ASP to print the following statement. You don’t want to be doing that in this case.

<%@ Language="C#" Inherits="System.Web.Mvc.ViewUserControl<string>" %>
<% 
    ViewData["countries"] = new string[] { "France", "Germany", "US", "UK" };
    var q = ViewData["countries"]; 
%>
<%= Html.DropDownList("",ViewData["countries"] as SelectList)%>

Try that.

Also, why do you assign q and not use it?