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2011-02-24T14:19:45.723
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2011-02-24T14:19:45.723
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Solved it! If anyone is interested, my solution is the following. I created a class: <pre><code>public class AttributeEditViewModel { public AttributeEditViewModel() { } public AttributeEditViewModel(Attribute attribute, SelectList categories) { this.attribute = attribute; this.categories = categories; } public Attribute attribute { get; set; } public SelectList categories { get; set; } } </code></pre> My controller: <pre><code> // GET: /Attribute/Edit/5 public ActionResult Edit(int AttributeID) { Attribute _attribute = ProfileDB.GetAttribute(AttributeID); var _viewmodel = new AttributeEditViewModel { attribute = _attribute, categories = new SelectList(ProfileDB.GetAllCategories(), "CategoryID", "CategoryName", _attribute.CategoryID) }; return View(_viewmodel); } </code></pre> Part of my view: <pre><code><%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<KnowledgePortal.ViewModel.AttributeEditViewModel>" %> <div class="editor-field"> <%: Html.DropDownList("Category", Model.categories, Model.attribute.CategoryID) %> </div> <input type="submit" value="Save" /> </code></pre> And the postback: <pre><code>// POST: /Attribute/Edit/5 [HttpPost] public ActionResult Edit(int AttributeID, FormCollection formcollection) { var _attribute = ProfileDB.GetAttribute(AttributeID); int _selcategory = Convert.ToInt32(formcollection["Category"]); _attribute.CategoryID = (int)_selcategory; try { ProfileDB.SaveChanges(); return RedirectToAction("Index"); } catch (Exception e) { return View(_attribute); } } </code></pre> Basically my problem was due to my lack of understanding what updatemodel did. So after "_attribute.CategoryID = _selcategory" all I had to do was savechanges, but first I tried to updatemodel which kept failing. Hope this helps someone else!
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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.