Blazor validation not working when using Metadata class!

Question

I am using blazore Server side. Form validation is not working when using Metadata class. I am using scaffolding and my DB models are oftern automatically generated. If i modify the it wipes out all my Dataannotation validations.

Here is the class that i am using :

public partial class ContactUs_Product_ProductRequests
    {
        [Key]
        public int ProductRequestID { get; set; }
        [StringLength(50)]
        public string CompanyName { get; set; }
        public int? CompanyTypeID { get; set; }
        [StringLength(50)]
        public string AgentName { get; set; }
        [StringLength(50)]
        public string AgentRole { get; set; }
        [StringLength(50)]
        public string AgentTel { get; set; }
        [StringLength(50)]
        public string AgentMobile { get; set; }
        [StringLength(50)]
        public string AgentEmail { get; set; }
        public string Description { get; set; }
        [StringLength(10)]
        public string RequestDate { get; set; }
    }

public class ContactUs_Product_ProductRequestsMetadata
    {
        [Required]
        public string AgentName { get; set; }
    }

    [MetadataType(typeof(ContactUs_Product_ProductRequestsMetadata))]
    public partial class ContactUs_Product_ProductRequests
    {

    }

Answer 1

Hi @Hamed Vaziri

It seems it is not yet supported for Blazor.

You can see the github issue.

MetadataTypeAttribute doesn't influence DataAnnotations validation result

Best Regards,
Yinqiu Yao

Answer 2

Thanks for reply
What's the best practice for this situation?
Thanks in advance