>AH HA! When you added the constructor, .Net wants to use it everytime. However, when it's created here, there is no constructor that takes no parameters. Create one, and things should start working.
>
>>I think my troubles started when I added this public constructor to the ViewModel. Prior to that at least the Edit method of my controller was being hit. Do you know if I can adjust the ViewModel somehow?
>>
>>I am not sure what do you mean by alert boxes. I can debug the java script in FireFox (FireBug). I see that oForm has some data (it doesn't look like json to me, though).

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?