Perform conditional validation

Question

Is it possible to conditionally validate a field with the server side validation helpers?

E.G.

public partial class SomeEntity
{
   public bool Chargeable { get; set; }
   [RegularExpression(@"\d{8,8}", ErrorMessage = "should have alpha numeric characters.")]
   public string CaseNumber { get; set; }
}

Requirement: CaseNumber is required if and only if Chargeable is true.

I could do:

 [RegularExpression(@"\d{8,8}", ErrorMessage = "should have alpha numeric characters."), Required]
 public string CaseNumber { get; set; }

However, Required(if(Chargeable)) is what I need...

possible duplicate of [RequiredIf Conditional Validation Attribute](http://stackoverflow.com/questions/7390902/requiredif-conditional-validation-attribute) — jbabey, Jun 06 '13 at 16:55

serge.karalenka · Accepted Answer · 2013-06-06T17:02:35.217

3

Make your SomeEntity class implement the IValidatableObject interface.

edited Jun 06 '13 at 17:02

answered Jun 06 '13 at 16:56

serge.karalenka

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Perform conditional validation

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