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    <p><em><strong>Sorry - just realised that your code was VB and I've answered in C#</em></strong></p> <p>This could be because the model binder is now looking <code>modelname.property</code> instead of just <code>property</code> in the ValueProviders and, previously, because it was a direct action method parameter, it would have just been looking for <code>property</code>.</p> <p>Now that the model type is a member of another, its property name will be used as a prefix and I <em>don't believe</em> you can remove that requirement (could try <code>Bind(Prefix="")</code> on the parameter, but I don't think that'll work).</p> <p>This is assuming you aren't custom-binding every property and that the <code>DefaultModelBinder</code> is doing some of these properties for you.</p> <p>You should be able to make it work, without changing code, by altering your query string to be <code>?modelname.property=[value]</code>. If you're using a Form, then you should consider using the <code>Html.EditorFor</code> extension method - as it takes care of model naming (so long as your ViewModel member names and input model names are consistent). But as an example from the query string:</p> <pre><code>public class MyObject{ public string StringValue { get; set; } } public class MyObjectOuter{ public MyObject Nested { get; set; } } public ActionResult Index(MyObjectOuter obj); </code></pre> <p>The obj.Nested.StringProperty value can be filled with: <code>/Index?Nested.StringValue=hello%20world</code> because the <code>obj</code> prefix is implicit anyway.</p> <p>If you don't like this, you have a couple of options:</p> <p>1) Change the signature of the method to take two parameters:</p> <pre><code>public ActionResult Index(MyObjectOuter outer, MyObject nested) </code></pre> <p>And then in the body you immediately copy <code>nested</code> to the <code>obj.Nested</code> property. This is a little bit hacky - but it'll work.</p> <p>2) Manually force the bind of your class' properties to use non-prefixed values from the <code>ValueProviders</code> (but then you're limiting your model type to only work with certain types of request - which isn't exactly flexible).</p> <p>3) Or, like I said earlier, if these properties are being bound from an Http Form, use <code>Html.EditorFor</code> to generate the markup - it automatically generates inputs with the correct names, so long as they don't change from input->output.</p>
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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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