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PO
 

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  1. PO
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    <p>I had same problem, and finally I got the answer...</p> <p>The problem is that in the POST action, after submitting the form, the ModelState is not valid, or it's catching an error in try/catch, so the View is returned. But this time the View has not the <code>ViewData["basetype"]</code> correctly set.</p> <p>You need to populate it again, probably with the same code used before, so repeat this:</p> <pre><code>var db = new DB(); IEnumerable&lt;SelectListItem&gt; basetypes = db.Basetypes.Select( b =&gt; new SelectListItem { Value = b.basetype, Text = b.basetype }); ViewData["basetype"] = basetypes; </code></pre> <p>before the <code>return View(meal)</code> in the <code>[HttpPost]</code> method.</p> <p>exactly this will solve your problem:</p> <pre><code>[HttpPost] public ActionResult Create(Meal meal) { if (ModelState.IsValid) { try { // TODO: Add insert logic here var db = new DB(); db.Meals.InsertOnSubmit(meal); db.SubmitChanges(); return RedirectToAction("Index"); } catch { var db = new DB(); IEnumerable&lt;SelectListItem&gt; basetypes = db.Basetypes.Select( b =&gt; new SelectListItem { Value = b.basetype, Text = b.basetype }); ViewData["basetype"] = basetypes; return View(meal); } } else { var db = new DB(); IEnumerable&lt;SelectListItem&gt; basetypes = db.Basetypes.Select( b =&gt; new SelectListItem { Value = b.basetype, Text = b.basetype }); ViewData["basetype"] = basetypes; return View(meal); } } </code></pre> <p>I know this question is very old, but I came here today with the same problem, so other could come here later...</p>
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    1. POThe ViewData item that has the key 'MY KEY' is of type 'System.String' but must be of type 'IEnumerable<SelectListItem>'
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    1. PTAnswer
    1. USsharptooth
    1. USPeto
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POThe ViewData item that has the key 'MY KEY' is of type 'System.String' but must be of type 'IEnumerable<SelectListItem>'
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    1. This table or related slice is empty.
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      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. This table or related slice is empty.
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      1. This table or related slice is empty.
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    1. CO+1 for "populate it again"...I have a fairly robust system in place for composing my view models, but I had completely forgotten to call it. Thus, the property wasn't populated and I received this (rather ambiguous) message no matter what I tried.
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      1. USTim Medora
    2. COif you get this BEFORE a post, it's because there is nothing in the SelectList, just found that one.
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      1. USMartin
    3. CO+1 Because I was setting my ViewBag in the Index method when I was really calling an Html.Action to another Action Method!!
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      1. USSwampyFox
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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