error - passing array value to viewdata MVC5

Question

Hello everyone,

 

This is the Controller, 

string[] arryvalidvalue = new string[] { "Red","Black","White" };
          List<SelectListItem> listValidValies = new List<SelectListItem>();
          foreach (var item in arryvalidvalue)
          {
              listValidValies.Add(new SelectListItem { Text = item, Value = item.ToString() });
          }
          ViewData["arryvalidvalue"] = listValidValies;

 and view, 

<tr><td>@Html.TextBox(item.AttributeName)</td><td>@Html.DropDownList("", ViewData["arryvalidvalue"] as List<SelectListItem>, "Select", new { size = item.AttributeMaxLength })</td></tr>

 error occured: 

"

An exception of type 'System.ArgumentException' occurred in System.Web.Mvc.dll but was not handled in user code

Additional information: Value cannot be null or empty." 

 

How can I solve this?