Reputation: 28555
Im using fluent validation with mvc4
In my Model I have a list:
public List<int> TransDrops { get; set; }
in the view im creating text boxes for each item in the list.
I want to subsequently make sure each field is filled in. (not null/empty)
OrderDetailsViewModelValidator is the validator on the model, what do i need?
Thanks
Upvotes: 17
Views: 32502
Reputation: 712
There is a simpler approach now, using RuleForEach
:
RuleForEach(model => model.TransDrops)
.NotNull()
.WithMessage("Please fill all items");
Make sure to use NotNull
and not NotEmpty
, because NotEmpty validates type's default value (in this case: int
, it's 0).
You can check for more details in the documentation
Upvotes: 14
Reputation: 6782
First you have to use nullable integer type for collection item, otherwise empty textboxes would be bound to zero value, what makes impossible to distinguish empty textboxes and filled with zeros.
public List<int?> TransDrops { get; set; }
Next, use predicate validator (Must rule):
RuleFor(model => model.TransDrops)
.Must(collection => collection == null || collection.All(item => item.HasValue))
.WithMessage("Please fill all items");
If you need to prevent empty collection being successfully validated, just add NotEmpty()
rule before predicate validator: it checks that any IEnumerable
not null
, and have at least 1 item.
Upvotes: 27