I have an html.dropdownlist that is being populated in the Index action.
public ActionResult Index()
{
var maxyear = (from estiamte in dbBudget.Estimates
select estiamte.Year).Max();
var years = (from estimate in dbBudget.Estimates
select new { estimate.Year }).Distinct().ToList();
ViewData["Years"] = new SelectList(years.OrderByDescending(o => o.Year), "Year", "Year");
var vu_Estimates = dbBudget.vu_Estimates.OrderByDescending(o => o.Expense).ThenBy(o => o.CategoryGroupSortOrder).ThenBy(o => o.SortOrder).Where(o => o.Year == maxyear).ToList();
return View(vu_Estimates);
}
I'm defining the html.dropdownlist so that changing the value will trigger a postback:
<div>
<% using (Html.BeginForm()) { %>
<%= Html.DropDownList("Years", (SelectList)ViewData["Years"], new { onchange = "this.form.submit();" })%> | <%: Html.ActionLink("Create New Year of Estimates", "CreateEstimates", "Estimate") %>
<%} %>
</div>
I'm capturing the postback and filtering the displayed table. I'm trying to have the dropdown list display the chosen value, but that is not working.
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Index(FormCollection formCollection)
{
var years = (from estimate in dbBudget.Estimates
select new { estimate.Year }).Distinct().ToList();
int year = Convert.ToInt32(formCollection["Years"]);
ViewData["Years"] = new SelectList(years.OrderByDescending(o => o.Year), "Year", "Year", year);
var vu_Estimates = dbBudget.vu_Estimates.OrderByDescending(o => o.Expense).ThenBy(o => o.CategoryGroupSortOrder).ThenBy(o => o.SortOrder).Where(o => o.Year == year).ToList();
return View(vu_Estimates);
}
What do I need to do to have the dropdown list display the selected value after postback instead of the first value in the list?