CODEWITHSUNDEEP
c#asp.net-mvc-4modelrequired-fieldfoolproof-validation
Md Aslam
Md Aslam

Reputation: 1408

RequiredIf Conditional Validation for two variables in MVC4

I have a model class that is following 

 public bool Saturday{ get; set; }

 public bool Sunday{ get; set; }

 public string Holiday{ get; set; }

In which I want to use the RequiredIf condition for the Holiday field using the both Saturday and Sunday fields. Can I use like following 

   [RequiredIf("Sunday,Saturday",false)]
   public string Holiday{ get; set; }

So I don't know how to use the RequiredIf condition in my model class, So please someone help me

Upvotes: 16

Views: 28571

Answers (3)

Terra-jin
Terra-jin

Reputation: 73

If the need for more complex validation arises, I'd recommend implementing IValidatableObject.

public class YourModel : IValidatableObject
{
    public bool Saturday{ get; set; }

    public bool Sunday{ get; set; }

    public string Holiday{ get; set; }

    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
    {
        var result = new List<ValidationResult>();

        if (Saturday == false && Sunday == false && string.IsNullOrEmpty(Holiday))
        {
            result.Add(new ValidationResult("Holiday is required outside weekends"));
        }

        return result;
    }
}

If you combine property checks with IValidatableObject, be sure to note this behaviour.

Upvotes: 2

Chico Ribeiro
Chico Ribeiro

Reputation: 309

Maybe try this in your model:

[Required]
public bool Saturday{ get; set; }

[Required]
public bool Sunday{ get; set; }

[NotMapped]
public bool SatSun
{
    get
    {
        return (!this.Saturday && !this.Sunday);
    }
}

[RequiredIf("SatSun",true)]
public string Holiday{ get; set; }

Upvotes: 24

Sukanya1991
Sukanya1991

Reputation: 776

My Project has RequiredIf in it.

[Required]
public int SalesID { get; set; }

[RequiredIf("SalesID==1", ErrorMessage = "License is required.")]
public string License{ get; set; }

It shows error message 'License is required.' when License is left blank only if SalesID is 1. License cannot be blank if SalesID is 1.

For your code it should be something like

[RequiredIf("Sunday,Saturday",AllowEmptyStrings=false)]
public string Holiday{ get; set; }

It means if Sunday and Saturday are true you can allow Holiday property to be an Empty String.

Upvotes: -2

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