kendo ui - Persisting the default value of the numeric text after deleting entered value -

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have @ sample here. problem have need have 0.00 value remain in numerictextbox though value deleted in control. @ moment appears empty on ui. can advise cleanest solutions problem?

you can achieve goal wiring change event of widget , modify value , model's 1 when triggered.

<div id="view">     <div data-template="containertpl" data-bind="source: people"></div>            <button data-bind="click: addnew">add</button> </div>   <script id="containertpl" type="text/x-kendo-template">     <div>       <label for="firstname#:id#">name</label>       <input name="firstname#:id#" type="text" data-bind="value: firstname"/>         <input data-role="numerictextbox" data-bind="value: income, events: { change: numericchange }"/>     </div> </script>  var viewmodel = kendo.observable({         people: [         {id: 1, firstname: "", income: "0.00" },         {id: 2, firstname: "", income: "0.00" },         {id: 3, firstname: "", income: "0.00" }     ],     numericchange: function(args) {          var numeric = args.sender;          if (numeric.value() === null) {              numeric.value(0);             args.data.set("income", 0);         }     } });  viewmodel.addnew = function(){     viewmodel.people.push({id: viewmodel.people.length + 1, firstname: "generated", income: "0.00"}); };  $(document).ready(function(){            kendo.bind($("#view"), viewmodel);            });

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