c# - ASP.NET MVC4 Entity Framework db.SaveChanges() Condition not working -

i working on project in asp.net mvc4 entity framework. here problem, code send different json object depending on if db.savechanges worked or not !

ive been doing debug console , seems false else part of if , never goes in actual condition if condition ok. hard explain easy understand code here goes.

code controller sending true or false json object javascript

   [httppost]     public actionresult enregistrer_inscription(inscriptionpost inscpost)     {              noiretorentities db = new noiretorentities();             inscription insc = new inscription()             {                 inscriptionnom = inscpost.nomj,                 inscriptionprenom = inscpost.prenomj,                 inscriptiondatenaissance = inscpost.datenaissance,                 inscriptiondate = datetime.now,                 inscriptioncategory = inscpost.category,                 inscriptiondivision = inscpost.division,                 inscriptionstatut = inscpost.statut,                 inscriptiontaille = inscpost.taille,                 inscriptionsexe = inscpost.sexe,                 inscriptionecole = inscpost.ecole,                 inscriptionagesept = inscpost.agesept,                 inscriptionniveauscolaire = inscpost.niveauscolaire,                 inscriptionadressej = inscpost.adressej,                 inscriptionvillej = inscpost.villej,                 inscriptioncodepostalj = inscpost.codepostalj,                 inscriptioncourrielj = inscpost.courrielj,                 inscriptiontelephonej = inscpost.telephonej,                 inscriptionnomp = inscpost.nomp,                 inscriptionprenomp = inscpost.prenomp,                 inscriptionadressep = inscpost.adressep,                 inscriptionvillep = inscpost.villep,                 inscriptioncodepostalp = inscpost.codepostalp,                 inscriptioncourrielp = inscpost.courrielp,                 inscriptiontelephonep = inscpost.telephonep,                 inscriptionnomm = inscpost.nomm,                 inscriptionprenomm = inscpost.prenomm,                 inscriptionadressem = inscpost.adressem,                 inscriptionvillem = inscpost.villem,                 inscriptioncodepostalm = inscpost.codepostalm,                 inscriptioncourrielm = inscpost.courrielm,                 inscriptiontelephonem = inscpost.telephonem,                 inscriptionnotes = inscpost.notes,              };         try         {             db.inscription.add(insc);                         db.savechanges();             if (db.savechanges() > 0)             {                 return json(new { success = true });             }             else             {                 return json(new { success = false });              }          }                     catch (system.data.entity.validation.dbentityvalidationexception ex)         {             return json(new { success = false });         }                            } }  

here jquery code

 success: function (data) {                 console.log(data);                 console.log(data.success);                 if (data.success == true) {                     console.log("succ");                     console.log(data);                     alertify.success("formulaire recu avec succès", 5000);                     vider_champs()                 }                 else {                     console.log("nope");                     console.log(data);                     alertify.error("le formulaire comporte des erreurs", 5000);                 }                                    },             error: function () {                 console.log("error");                 alertify.error("le formulaire comporte des erreurs", 5000);             }         });     } 

so problem on code : if (db.savechanges() > 0)

the issue calling db.savechanges() twice:

db.savechanges();              // save changes database if (db.savechanges() > 0)      // save changes once again {     return json(new { success = true }); } 

first time call method changes saved , there nothing save next time call it. instead, save result of call in variable , use in next line:

int result = db.savechanges(); if (result > 0) {     return json(new { success = true }); }