Is there a way to set a range for DateTime in the View Model, in a way that makes the maximum possible date one can input be the current date and time (UTC), and the minimum date possible be a year ago?
Something like [Range(typeof(DateTime), "06/06/2020 23:43", "Utc.Now")]?
Thank you in advance.
If you want to restrict user input, you can set the following settings on your view.
<input asp-for="SelectedDate" max="@DateTime.Now.ToString("yyyy-MM-ddThh:mm")" min="@DateTime.Now.AddYears(-1).ToString("yyyy-MM-ddThh:mm")" />
Result:
ToString to anything else, like "dd-MM-yyyy HH:mm"? (Validation still works fine, but need to show the errors in the validation as perfectly readable to the user, while retaining the disabled dates).If you want to validate the DateTime range on server-side, you would define a custom attribute to validate your property value.
public class ValidateDate: ValidationAttribute
{
protected override ValidationResult IsValid
(object date, ValidationContext validationContext)
{
return (date<= DateTime.Now && date >= DateTime.Now.AddYears(-1))
? ValidationResult.Success
: new ValidationResult("Invalid date range");
}
}
And your property should be decorated with the attribute
[ValidateDate]
public DateTime MyDate{get; set;}
I modified answer from Majid Qafouri
It works good!
using System.ComponentModel.DataAnnotations;
public class ValidateDateAttribute : ValidationAttribute
{
protected override ValidationResult IsValid
(object obj, ValidationContext validationContext)
{
DateTime date = Convert.ToDateTime(obj);
return (date <= DateTime.UtcNow && date >= DateTime.UtcNow.AddYears(-1))
? ValidationResult.Success
: new ValidationResult("Invalid date range");
}
}
And your property should be decorated with the attribute
[ValidateDate]
public DateTime Created { get; set; }
