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POPropogate Changes to Nested Entities in MVC 3
 

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  1. POPropogate Changes to Nested Entities in MVC 3
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    <p>I have two POCO classes a User and an Address. Address is a complex object, and a User has one Address. I want to create a single User view that allows the create/edit of an Address on the same form via MVC Scaffolding + Entity Framework + Repository Pattern. The Create User View works correctly, but when I try to make changes to the Address in the User Edit View, the changes don't get propagated. How do I force the changes to propogated down to the Address object from the User View? Everything else is auto generated.</p> <h2>POCO Classes</h2> <pre><code>public class TestDB : DbContext { protected override void OnModelCreating(DbModelBuilder modelBuilder) { } public DbSet&lt;Address&gt; Addresses { get; set; } public DbSet&lt;User&gt; Users { get; set; } } public class Address { public int ID { get; set; } public string Street1 { get; set; } public string Street2 { get; set; } public string City { get; set; } public string State { get; set; } public string PostalCode { get; set; } public string Country { get; set; } } public class User { public int ID { get; set; } public string UserName { get; set; } /*[ForeignKey("Address")] public int AddressID { get; set; }*/ public virtual Address Address { get; set; } } </code></pre> <h2>Edit User View</h2> <pre><code>&lt;% using (Html.BeginForm()) { %&gt; &lt;%: Html.ValidationSummary(true) %&gt; &lt;fieldset&gt; &lt;legend&gt;User&lt;/legend&gt; &lt;%: Html.HiddenFor(model =&gt; model.ID) %&gt; &lt;%: Html.Partial("CreateOrEdit", Model) %&gt; &lt;legend&gt;Address&lt;/legend&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Address.Street1) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Address.Street1)%&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Address.Street1)%&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Address.Street2)%&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Address.Street2)%&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Address.Street2)%&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Address.City)%&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Address.City)%&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Address.City)%&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Address.State)%&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Address.State)%&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Address.State)%&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Address.PostalCode)%&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Address.PostalCode)%&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Address.PostalCode)%&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Address.Country)%&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Address.Country)%&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Address.Country)%&gt; &lt;/div&gt; &lt;p&gt; &lt;input type="submit" value="Save" /&gt; &lt;/p&gt; &lt;/fieldset&gt; &lt;% } %&gt; &lt;div&gt; &lt;%: Html.ActionLink("Back to List", "Index") %&gt; &lt;/div&gt; </code></pre> <h2>Editor Template for Address:</h2> <pre><code>&lt;%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl&lt;AddressTest.Models.Address&gt;" %&gt; &lt;script src="&lt;%: Url.Content("~/Scripts/jquery-1.5.1.min.js") %&gt;" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="&lt;%: Url.Content("~/Scripts/jquery.validate.min.js") %&gt;" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="&lt;%: Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js") %&gt;" type="text/javascript"&gt;&lt;/script&gt; &lt;% using (Html.BeginForm()) { %&gt; &lt;%: Html.ValidationSummary(true) %&gt; &lt;fieldset&gt; &lt;legend&gt;Address&lt;/legend&gt; &lt;%: Html.HiddenFor(model =&gt; model.ID) %&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Street1) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Street1) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Street1) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Street2) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Street2) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Street2) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.City) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.City) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.City) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.State) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.State) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.State) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.PostalCode) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.PostalCode) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.PostalCode) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%: Html.LabelFor(model =&gt; model.Country) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%: Html.EditorFor(model =&gt; model.Country) %&gt; &lt;%: Html.ValidationMessageFor(model =&gt; model.Country) %&gt; &lt;/div&gt; &lt;p&gt; &lt;input type="submit" value="Save" /&gt; &lt;/p&gt; &lt;/fieldset&gt; &lt;% } %&gt; &lt;div&gt; &lt;%: Html.ActionLink("Back to List", "Index") %&gt; &lt;/div&gt; </code></pre> <h2>Change to User Edit View:</h2> <pre><code>&lt;% using (Html.BeginForm()) { %&gt; &lt;%: Html.ValidationSummary(true) %&gt; &lt;fieldset&gt; &lt;legend&gt;User&lt;/legend&gt; &lt;%: Html.HiddenFor(model =&gt; model.ID) %&gt; &lt;%: Html.Partial("CreateOrEdit", Model) %&gt; &lt;%: Html.Editor("Address", Model.Address) %&gt; &lt;p&gt; &lt;input type="submit" value="Save" /&gt; &lt;/p&gt; &lt;/fieldset&gt; &lt;% } %&gt; </code></pre>
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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.

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