Datatype.Date how to set minimum date to Today?

Question

I have created a datepicker using MVC5 DataType.Date:

[DataType(DataType.Date)]
public DateTime ArrivalDate { get; set; }

How can I set the minimum available date to Today and disable all past dates?

Alternatively, is there an option to disable a custom range of dates?

I have tried to create a custom DateRangeValidator using the this answer, but with that I get the following error: named parameter type constraints

Here's my Date range validator:

public DateTime FirstDate = DateTime.Today.Date;
    //public DateTime SecondDate { get; set; }

    protected override ValidationResult IsValid(DateTime date, ValidationContext validationContext)
    {
        // your validation logic
        if (date >= DbFunctions.TruncateTime(FirstDate))
        {
            return ValidationResult.Success;
        }
        else
        {
            return new ValidationResult("Date is not valid.");
        }
    }

Answer 1

Try building a custom ValidationAttribute with your own logic :

public sealed class PresentOrFutureDateAttribute : ValidationAttribute
{
    protected override ValidationResult IsValid(object value, ValidationContext validationContext)
    {
        // your validation logic
        if (Convert.ToDateTime(value) >= DateTime.Today)
        {
            return ValidationResult.Success;
        }
        else
        {
            return new ValidationResult("Past date not allowed.");
        }
    }
}