Data Annotation - CompareAttribute - ValidationContext is null

[Phil4121]

Hello!

Currently I'm validating one of my properties with the CompareAttribute.

The implementation is pretty straight forward and looks like this:

public class RegisterModel
{
    [Required]
    public string DisplayName {get;set;}

    [EmailAddress(ErrorMessage = "EMail invalid!")]
    [Required]
    public string Email { get; set; }

    [DataType(DataType.Password)]
    [Required]
    public string Password { get; set; }

    [Compare(nameof(Password), ErrorMessage = "Passwords didn't match!")]
    public string ConfirmPassword { get; set; }
}

The RequiredAttribute is validated perfectly but the CompareAttribute isn't validated at all.

I try to create a custom implementation of the CompareAttribute and I notice, when IsValid is called, the ValidationContext is always null.

Is this a bug or what I'm doing wrong? I'm using .Net 7 in combination with .Net MAUI.

Thanks,
Phil