Monday, 28 November 2011

How to Create Custom Date Validation for MVC3

Suppose you want to ensure that a Date is not in the future.

You need to add a Custom Data Annotation - by inheriting from ValidationAttribute class.

    public class DateNotInFutureAttribute : ValidationAttribute
        public DateNotInFutureAttribute()
            : base(_defaultError)


        private const string _defaultError = "{0} cannot be in the future";

        public override bool IsValid(object value)
            DateTime val = (DateTime)value;
            return DateTime.Now.Ticks < val.Ticks ? false : true;

Then in your Model you simply add your new attribute:

        [DisplayName("Date Revised")]
        public object DATE_REVISED { get; set; }

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