javascript - Slickgrid custom cell editor updates all cells -

i've customised code @ http://mleibman.github.io/slickgrid/examples/example3a-compound-editors.html provide me custom editor takes numerator , denominator , displays percentage once values updated (custom formatter code below):-

function numericrangeformatter(row, cell, value, columndef, datacontext) {       return isnan(datacontext.from/datacontext.to) ? "" : ((datacontext.from/datacontext.to) * 100).tofixed(2) + "%";   } 

this works expected, i've found if have more 1 column identified using custom editor / formatter there appears glitch in that, if edit cell in row, rest of cells utilise editor update same value.

my columns defined below:-

  var columns = [     {id: "indicator", name: "indicator", field: "indicator", width:300},     { id: "apr", name: "april", field: "apr", width: 100,  formatter: numericrangeformatter, editor: numericrangeeditor },     { id: "may", name: "may", field: "may", width: 100, formatter: numericrangeformatter, editor: numericrangeeditor },     { id: "jun", name: "june", field: "jun", width: 100,formatter: numericrangeformatter, editor: numericrangeeditor }   ]; 

so, basically, if edit cell in 'april' column, cells both 'may' , 'june' update same value. don't want behaviour.

i can't see wrong in code handles values in editor, , i've read guidance @ https://github.com/mleibman/slickgrid/wiki/writing-custom-cell-editors.

is there obvious missing? code editor below:-

  function numericrangeeditor(args) {       var $from, $to;       var scope = this;       this.init = function () {           $from = $("<input type=text style='width:40px' />")               .appendto(args.container)               .bind("keydown", scope.handlekeydown);           $(args.container).append("&nbsp;/&nbsp;");           $to = $("<input type=text style='width:40px' />")               .appendto(args.container)               .bind("keydown", scope.handlekeydown);           scope.focus();       };        this.handlekeydown = function (e) {           if (e.keycode == $.ui.keycode.left || e.keycode == $.ui.keycode.right || e.keycode == $.ui.keycode.tab) {               e.stopimmediatepropagation();           }       };        this.destroy = function () {           $(args.container).empty();       };        this.focus = function () {           $from.focus();       };        this.serializevalue = function () {           return { from: parseint($from.val(), 10), to: parseint($to.val(), 10) };       };        this.applyvalue = function (item, state) {           item.from = state.from;           item.to = state.to;       };        this.loadvalue = function (item) {           $from.val(item.from);           $to.val(item.to);       };        this.isvaluechanged = function () {           return args.item.from != parseint($from.val(), 10) || args.item.to != parseint($from.val(), 10);       };        this.validate = function () {           if (isnan(parseint($from.val(), 10)) || isnan(parseint($to.val(), 10))) {               return { valid: false, msg: "please type in valid numbers." };           }           if (parseint($from.val(), 10) > parseint($to.val(), 10)) {               return { valid: false, msg: "'from' cannot greater 'to'" };           }           return { valid: true, msg: null };       };       this.init();   } 

you have columns namely [apr,may,jun] use same formatter/editor.

the problem referencing same fields within datacontext to , from. if open editor on of columns [apr,may,jun], overwriting fields to , from. thus, changes reflects other columns formatter use same fields reference

to resolve this, have add new fields on datacontext store values each month e.g. aprilto,aprilfrom, mayto,mayfrom,junto,junfrom. then, change editor to

this.applyvalue = function (item, state) {       item[args.column.field + 'from'] = state.from;       item[args.column.field + 'to'] = state.to; };` 

formatter :

function numericrangeformatter(row, cell, value, columndef, datacontext) {       return isnan(datacontext[columndef.field + 'from'] /  datacontext[columndef.field + 'to']) ? "" : ((datacontext[columndef.field + 'from'] /datacontext[columndef.field + 'to']) * 100).tofixed(2) + "%";    }