// Used when the ValueProvider contains the collection to be bound as a single element, e.g. the raw value
// is [ "1", "2" ] and needs to be converted to an int[].
internal static List <TElement> BindSimpleCollection(ModelBindingExecutionContext modelBindingExecutionContext, ModelBindingContext bindingContext, object rawValue, CultureInfo culture)
{
if (rawValue == null)
{
return(null); // nothing to do
}
List <TElement> boundCollection = new List <TElement>();
object[] rawValueArray = ModelBinderUtil.RawValueToObjectArray(rawValue);
foreach (object rawValueElement in rawValueArray)
{
ModelBindingContext innerBindingContext = new ModelBindingContext(bindingContext)
{
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(null, typeof(TElement)),
ModelName = bindingContext.ModelName,
ValueProvider = new ValueProviderCollection() // aggregate value provider
{
new ElementalValueProvider(bindingContext.ModelName, rawValueElement, culture), // our temporary provider goes at the front of the list
bindingContext.ValueProvider
}
};
object boundValue = null;
IModelBinder childBinder = bindingContext.ModelBinderProviders.GetBinder(modelBindingExecutionContext, innerBindingContext);
if (childBinder != null)
{
if (childBinder.BindModel(modelBindingExecutionContext, innerBindingContext))
{
boundValue = innerBindingContext.Model;
bindingContext.ValidationNode.ChildNodes.Add(innerBindingContext.ValidationNode);
}
}
boundCollection.Add(ModelBinderUtil.CastOrDefault <TElement>(boundValue));
}
return(boundCollection);
}
