如何验证模型取决于使用ASP.NET Core Web API的布尔数据类型值

Question

I have created a model using asp.net core web API and I have to validate the property depends on bool data type property value.

If the IsWaitingList property is true , the WaitingListEncounterOrOtherEncounter property is required property, else it's not a mandatory field.

public class CenterConfiguration
    {
        public Guid Id { get; set; } = Guid.NewGuid();
        public bool? IsWaitingList { get; set; }
        [Required(ErrorMessage = "Please enter waiting list encounter or other encounter")]
        public int WaitingListEncounterOrOtherEncounter { get; set; }
    } 

If anybody knows, please let me know.

Answer 1

You can implement IValidatableObject to check complex validation conditions.

public class CenterConfiguration : IValidatableObject {
    public Guid Id { get; set; } = Guid.NewGuid();
    public bool? IsWaitingList { get; set; }
    public int? WaitingListEncounterOrOtherEncounter { get; set; }

    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext) {
         if (IsWaitingList && !WaitingListEncounterOrOtherEncounter.HasValue) {
             yield return new ValidationResult(
                 "Please enter waiting list encounter or other encounter",
                 new[] { "WaitingListEncounterOrOtherEncounter" }
             );
         }
    }
}

Also note that I changed WaitingListEncounterOrOtherEncounter from int to int? so you can actually leave this value blank.

See also How do I use IValidatableObject?