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Property Value List lets editors input multiple primitive values.

The available and supported types are:

  • `String`

  • `Int`

  • `DateTime`

  • `Double`

The idea is the same as with the `List<T>`, you add the list as a new property to your model, and the default descriptors match `IList` type and render the correct editor.

















Note

The property type does not have to be `IList`. The Optimizely descriptors are configured to match the `IList` interface but they also cover all base ones, so if you prefer to use `IEnumerable` or `ICollection` you can do so. All the following declarations are matched by the Value List descriptor.



## Validation

You can apply validation to both the list itself and to the individual items, and you can use `ListItemsAttribute` to control the number of items in the list:



The attributes that can be applied to individual items are:



## Render a list

To render a list:



To use the `PropertyFor` helper method you must define a specific Display template, and to do that you must first attach a `UIHint` to your property:



Then add a _StringsCollection.cshtml_ file to the _~/Views/Shared/DisplayTemplates_ folder.

An example of a Display Template can be seen in the Alloy package:



Add a `UniqueSellingPoints` property to your page template:



And you will see the following result in on-page edit: