When I add a new record then update it no issue comes. But when again edit the same record and then click on the cancel button then this error is coming

"Uncaught TypeError: Cannot read property 'uid' of undefined"

My code is :

 var app = angular.module('myapp', ['kendo.directives']);

app.controller('commonCtrl', function ($scope) {
            var factor = { Factor: { type: "string", editable: true } };
            var dynamicMonths = {
                decmonth: { type: "string", editable: true },
                novmonth: { type: "string", editable: false },
                octmonth: { type: "string", editable: false },
                septmonth: { type: "string", editable: false },
                augmonth: { type: "string", editable: false },
                julmonth: { type: "string", editable: false },
                junmonth: { type: "string", editable: false },
                maymonth: { type: "string", editable: false },
                aprmonth: { type: "string", editable: false },
                marmonth: { type: "string", editable: false },
                febmonth: { type: "string", editable: false },
                janmonth: { type: "string", editable: false }
            }
            var fieldSet = $.extend(factor, dynamicMonths);

            var crudServiceBaseUrl = "json/data",
                              dataSource = new kendo.data.DataSource({
                                  transport: {
                                      read: {
                                          url: crudServiceBaseUrl + "/read/qualitative.json",
                                          dataType: "json"
                                      },
                                      update: {
                                          url: crudServiceBaseUrl + "/update/qualitative.json",
                                          dataType: "json"
                                      },
                                      destroy: {
                                          url: crudServiceBaseUrl + "/delete/qualitative.json",
                                          dataType: "json"

                                      },
                                      create: {
                                          url: crudServiceBaseUrl + "/create/qualitative.json",
                                          dataType: "json"
                                      },
                                      parameterMap: function (options, operation) {
                                          if (operation !== "read" && options.models) {
                                              return { models: kendo.stringify(options.models) };
                                          }
                                      }
                                  },
                                  batch: false,
                                  schema: {
                                      data: "qualitative",
                                      model: {
                                          id: "FactorID",
                                          fields: fieldSet
                                      }
                                  }
                              });
            var staticColumns = [{
                command: [{
                    name: "edit", text: {
                        edit: "",
                        update: "",
                        cancel: ""
                    }
                }, { name: "destroy", text: " " }], title: "Option", width: "115px", locked: true
            }, { field: "Factor", title: "Factor", width: "250px", locked: true, }];
            var dynamicColumns = [
                      { field: "decmonth", title: "12/2016", width: "150px" },
                      { field: "novmonth", title: "11/2016", width: "150px" },
                      { field: "octmonth", title: "10/2016", width: "150px" },
                      { field: "septmonth", title: "09/2016", width: "150px" },
                      { field: "augmonth", title: "08/2016", width: "150px" },
                       { field: "julmonth", title: "07/2016", width: "150px" },
                      { field: "junmonth", title: "06/2016", width: "150px" },
                      { field: "maymonth", title: "05/2016", width: "150px" },
                      { field: "aprmonth", title: "04/2016", width: "150px" },
                      { field: "marmonth", title: "03/2016", width: "150px" },
                      { field: "febmonth", title: "02/2016", width: "150px" },
                      { field: "janmonth", title: "01/2016", width: "150px" }]

            var columns = staticColumns.concat(dynamicColumns);
            $scope.productName = "CECL";
            $scope.mainOptions = {
                dataSource: dataSource,
                toolbar: [{ name: "create", text: "<label class='lblAdd' title='Add Factor'>Factors</label>" }],
                columns: columns,
                editable: "inline"
            }
        });

In the above code I am using angular js and I getting the data from a json file which is situated locally on my machine.

I have individually separated the columns and data part in the objects. You can see in there.

Please help me out in this.

Waiting for your reply

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