NOTE: This has been resolved in MVC 4. If upgrading to MVC 4 is a viable option for your project then that is all you have to do in order to begin model-binding to enums. That said, here is the workaround for MVC 3 if you still need it. The issue is with the default … Read more
This can be achieved through overriding CreateModel(…). I will demonstrate that with an example. 1. Lets create a model and some base and child classes. public class MyModel { public MyBaseClass BaseClass { get; set; } } public abstract class MyBaseClass { public virtual string MyName { get { return “MyBaseClass”; } } } public … Read more
Yes, by default a multiselectlist will post through an array of the selected values. This article has further information, including how to use strongly-typed views with a multiselectlist. From the linked “article”: Your model or view model class needs a collection property for the IDs for the selected option items, e.g. List<int> ToppingIds. In the … Read more
The query string parameter value you are sending 2014-04-01T00:00:00Z is UTC time. So, the same gets translated to a time based on your local clock and if you call ToUniversalTime(), it gets converted back to UTC. So, what exactly is the question? If the question is why is this happening if sent in as query … Read more
Use a list instead and replace your foreach loop with a for loop: @model IList<BlockedIPViewModel> @using (Html.BeginForm()) { @Html.AntiForgeryToken() @for (var i = 0; i < Model.Count; i++) { <tr> <td> @Html.HiddenFor(x => x[i].IP) @Html.CheckBoxFor(x => x[i].Checked) </td> <td> @Html.DisplayFor(x => x[i].IP) </td> </tr> } <div> <input type=”submit” value=”Unblock IPs” /> </div> } Alternatively you … Read more
Since I obviously opt for option 1 (:-)) let me try to elaborate it a little more so that it is less breakable and avoid hardcoding concrete instances into the model binder. The idea is to pass the concrete type into a hidden field and use reflection to instantiate the concrete type. Suppose that you … Read more
There is a specific wire format for use with collections. This is discussed on Scott Hanselman’s blog here: http://www.hanselman.com/blog/ASPNETWireFormatForModelBindingToArraysListsCollectionsDictionaries.aspx Another blog entry from Phil Haack talks about this here: http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx Finally, a blog entry that does exactly what you want here: http://blog.stevensanderson.com/2010/01/28/editing-a-variable-length-list-aspnet-mvc-2-style/
In ASP.NET MVC 4, the default model binder will bind dictionaries using the typical dictionary indexer syntax property[key]. If you have a Dictionary<string, string> in your model, you can now bind back to it directly with the following markup: <input type=”hidden” name=”MyDictionary[MyKey]” value=”MyValue” /> For example, if you want to use a set of checkboxes … Read more