how to put DisplayName on ErrorMessage format

Question

I have something like this:

    [DisplayName(\"First Name\")]
    [Required(ErrorMessage=\"{0} is required.\")]
    [StringLength(50, MinimumLength = 10, Err         


        

Answer 1

Instead of (or perhaps in conjunction with) using the [DisplayName] attribute, use the [Display] attribute in System.ComponentModel.DataAnnotations. Populate its Name property.

With that, you can use built-in validation attributes or custom attributes with ValidationContext's DisplayName.

e.g.,

[Display(Name="First Name")] // <-- Here
[Required(ErrorMessage="{0} is required.")]
[StringLength(50, MinimumLength = 10, ErrorMessage="{0}'s length should be between {2} and {1}.")]
public string Name { get; set; }