Problem in validating the add product section-CodePudding

I wanted to do this validation in add and edit product

I set the [Required] attribute for both item and product but the validation doesn't work and it gives me this error when all fields are empty and when I hit register.

ProductViewModel=>

[Required(ErrorMessage = "لطفا {0} را وارد کنید.")]
[StringLength(27, ErrorMessage = "کد پستی باید 10 رقمی باشد.", MinimumLength = 5)]
[DisplayName("نام و نام خانوادگی")]
public string Name { get; set; }

[Required(ErrorMessage = "لطفا {0} را وارد کنید.")]
[StringLength(97, ErrorMessage = "کد پستی باید 10 رقمی باشد.", MinimumLength = 10)]
[DisplayName("توضیحات")]
public string Description { get; set; }

itemViewModel=>

    [Required(ErrorMessage = "لطفا {0} را وارد کنید.")]
    [DisplayName("قیمت")]
    public int Price { get; set; }

    [Required(ErrorMessage = "لطفا {0} را وارد کنید.")]
    [DisplayName("تعداد")]
    public int QuantityInStock { get; set; }

Error text:

CodePudding user response：

This is an exception caused by the value you store to the database being null.

Add the following code to the Page to make the Required attribute take effect:

@section Scripts {
    @{
        await Html.RenderPartialAsync("_ValidationScriptsPartial");
    }
}