Multiple MVC Foolproof Validation

Question

I am using MVC Foolproof Validation for my MVC 5 app.

I'm trying to say: EventPlanEnd is not required unless EventPlanStart is filled in. If it is, make sure EventPlanEnd > EventPlanStart. This doesn't seem to work...

 public Nullable<System.DateTime> EventPlanStart { get; set; }

 [RequiredIfTrue("EventPlanStart")]
 [GreaterThan("EventPlanStart")]
 public Nullable<System.DateTime> EventPlanEnd { get; set; }

Any ideas how I can do this with data annotations?

Possible duplicate of [MVC Foolproof Validation using PassOnNull - Nullable or "01.01.0001 00:00:00"](http://stackoverflow.com/questions/12406297/mvc-foolproof-validation-using-passonnull-nullable-or-01-01-0001-000000) — CodeCaster, Mar 01 '17 at 16:00
`[RequiredIfTrue]` is only applicable if the other property is a `bool` — , Mar 01 '17 at 21:55

rageit · Answer 1 · 2017-03-01T16:37:37.183

0

Maybe you can use RequiredIfNot instead of RequiredIfTrue which takes a boolean. This is an untested code:

public Nullable<System.DateTime> EventPlanStart { get; set; }

[RequiredIfNot("EventPlanStart", null)]
[GreaterThan("EventPlanStart")]
public Nullable<System.DateTime> EventPlanEnd { get; set; }

edited Mar 01 '17 at 16:37

answered Mar 01 '17 at 16:01

rageit

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Multiple MVC Foolproof Validation

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