javascript - ko does not update binded controls if model is changed programmatically -

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my model looks this. multi-functional page , model needs modified sometimes, when specific elements clicked, done using ajax call. update function updates model result, see below. unfortunately, model updates, elements on page stay same :(

function viewmodel(result,currenttheme) {         var self = this;         self.isblankform = ko.observable();         self.snapedit = ko.observable();         self.snapeditsuccess = ko.observable();         self.ismenotified = ko.observable();         self.isemailsenttouser = ko.observable();         self.fromemailbox = ko.observable();         self.subjectemailbox = ko.observable();         self.themenames = ko.observablearray([]);         self.themechoice = ko.observable();         self.bgcolor = ko.observable();         self.frmcolor = ko.observable();         self.txtcolor = ko.observable();         self.btncolor = ko.observable();         self.btntxtcolor = ko.observable();         self.appid = ko.observable();         self.revid = ko.observable();     }     var vm = new viewmodel();  function updatemodel(result) {     var currenttheme = result.payload.currtheme;     vm.isblankform = !(result.payload.isblankform);     vm.snapedit = result.payload.emailtext;     vm.snapeditsuccess = result.payload.successbody;     vm.ismenotified = result.payload.ismenotified;     vm.isemailsenttouser = result.payload.isemailsenttouser;     vm.fromemailbox = result.payload.fromuseremail;     vm.subjectemailbox = result.payload.emailsubject;     vm.themenames(result.payload.themelist);     vm.themechoice = result.payload.currtheme;      vm.bgcolor = result.payload.bgcolor;     vm.frmcolor = result.payload.frmcolor;     vm.txtcolor = result.payload.txtcolor;     vm.btncolor = result.payload.btncolor;     vm.btntxtcolor = result.payload.btntxtcolor;     vm.appid = result.payload.appid;     vm.revid = result.payload.revid; }

knockout observables functions, , need updated calling them this:

function updatemodel(result) {     var currenttheme = result.payload.currtheme;     vm.isblankform(!(result.payload.isblankform));     vm.snapedit(result.payload.emailtext);     vm.snapeditsuccess(result.payload.successbody);     vm.ismenotified(result.payload.ismenotified);     vm.isemailsenttouser(result.payload.isemailsenttouser);     vm.fromemailbox(result.payload.fromuseremail);     vm.subjectemailbox(result.payload.emailsubject);     vm.themenames(result.payload.themelist);     vm.themechoice(result.payload.currtheme);      vm.bgcolor(result.payload.bgcolor);     vm.frmcolor(result.payload.frmcolor);     vm.txtcolor(result.payload.txtcolor);     vm.btncolor(result.payload.btncolor);     vm.btntxtcolor(result.payload.btntxtcolor);     vm.appid(result.payload.appid);     vm.revid(result.payload.revid); }

further reading

  • observables : see section, reading , writing observables

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