Overload EF Validation with Custom class

Question

I m using Entity Framework, and have one view which is strongly type view model of type tblAuthorMaster. On Post ModelState returns me following error :


The value '0' is not valid for Status.

Here Status is of boolen datatype in DB/EF and on view it's dropdown (TEXT="active/inactive", VALUE="1/0"), so whenever i post my form i used to get the above error message.

I have tried some solution to overcome with this issue but it seems not wotking properly.

Following is my code base:

Here tblAuthorMaster is EF Class and AuthorModel is my Custom Class, which i m using for some custom validation and other stuff.


    [MetadataType(typeof(AuthorModel))]
    public partial class tblAuthorMaster { }

    public class AuthorModel
    {
        [Required(ErrorMessage = "*")]
        public string AuthorName { get; set; }
        [Required(ErrorMessage = "*")]
        public bool Status { get; set; }        

    }

Thanks in advance.

Darin Dimitrov Darin Dimitrov · Accepted Answer · 2012-09-24T07:55:54

For this to work properly the VALUE in the dropdown must be true/false and not 1/0. Since you haven't shown how you are generating your doropdown it is hard to help but it might look something like this:

<%= Html.DropDownListFor(
    x => x.Status,
    new[] 
    {
        new SelectListItem { Value = "true", Text = "active" },
        new SelectListItem { Value = "false", Text = "inactive" },
    }
) %>

Also what's the point of using a dropdown with 2 possible values? HTML provides you with checkboxes for this purpose:

<%= Html.CheckBoxFor(x => x.Status) %>

And a final remark: what you call a view model in your question is not a view model at all. It's an autogenerated EF domain model. View models are classes tat you specifically design for the requirements of a given view, they are not autogenerated by some wizard.

Overload EF Validation with Custom class

1 Answers