getting error in mvc dropdown

Question

I am getting error "System.InvalidOperationException: 'There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key 'ddlweb'. "

 

public ActionResult GetWebVersions()

{

ViewBag.ddlwebversion = MS.GetWebVersion();

return View("Version");

}

  

public dynamic GetWebVersion()

{

using (LystenEntities db = new LystenEntities())

{

//var weblist = db.WebVersions.Where(x => x.Status == "Current").OrderBy(x => x.Id).ToList();

return new SelectList(db.WebVersions.OrderBy(x => x.Id).ToList(), "Id", "Version");

}

}

 

 

<div class="form-group form-group-default">

<input type="hidden" id="hdnId" />

<label>Category Name</label>

@*@Html.DropDownList("ddlwebversion", (SelectList)ViewBag.ddlwebversion, "--- Select ---", new { @class = "form-control " })*@

@Html.DropDownList("ddlwebversion", (IEnumerable<SelectListItem>)ViewBag.ddlwebversion, "----Select---", new { @class = "form-control " })

</div>