Are you evaluating that the model data is valid? (ModelState.IsValid)

>Good that I looked.
>
>I used
>
> [StringLength(5)]
>
>and I don't know why did I use this instead of MaxLength. I am going to change that and re-try.
>
>Hmm, this should not make a difference
>
>http://stackoverflow.com/questions/5717033/stringlength-vs-maxlength-attributes-asp-net-mvc3-with-ef-4-1-code-first
>
>

> [ComplexType]
>    public class PhoneInfo
>    {
>        [DataType(DataType.PhoneNumber)]
>        
>        [DisplayName("Phone")]
>        [RegularExpression(@"^((\(\d{3}\)|\d{3})\s?)?\d{3}[-\s]?\d{4}\s*$", ErrorMessage = "Please enter valid Phone Number")]
>        public virtual string Phone { get; set; }
>
>        [StringLength(5)]
>        [DisplayName("Ext")]
>        public virtual string Ext { get; set; }
>
>        public bool HasValue
>        {
>            get
>            {
>                return (Phone != null || Ext != null);
>            }
>        }
>
>    }

>
>In my view I didn't even touch that field, I only put some data in the Address field. Why would it generate an error?