"Reprint" C # Background declarative validation, away from if validation

ViewModel

public class ViewModel    {        [Required (errormessage= title cannot be null ")] public        string Title {get; set;}        public string Name {get; set;}    }

Background validation Code

Public async task<actionresult> Save (ViewModel vm)        {            var validationcontext = new Validationcontext (VM); C7/>var results = new list<validationresult> ();            var isValid = validator.tryvalidateobject (VM, Validationcontext, results, true);             if (!isvalid)            {                return Json (new {Result = false, MSG = results. Select (x = x.errormessage). FirstOrDefault ()});            }            Return Json (New {Result = true, MSG = "Success! " });        }

　　

Foreground call:

$.ajax ({            type: "Post",            URL: "/home/save",            data: "title=&name=11222332",            dataType: "JSON",             Success:function (data) {                 alert (data). (MSG);            }         });

　　

Original address: http://www.cnblogs.com/dudu/p/annotation-based-validation.html#3100481

"Reprint" C # Background declarative validation, away from if validation