javascript - Public property bound to button outside of class doesn't have the same value as button bound internally when object is instantiated -

-

overall, have object keeps track of selected checkbox ids. way pushing/slicing ids into/out of array, $grid.selectedrows. object binds 'refresh' method refresh button. have class created object from, kendogridselection.

my issue button bound inside of class shows correct array values, while button bound outside of class public selectedrows property no longer updates after refresh button clicked.

for testing purposes, have 2 seeselectedrowsarray buttons:

  1. seeselectedrowsarray button (bound internally)
  2. seeselectedrowsarray2 button (bound outside of class)

i testing in chrome version 28.0.1500.95 m

here code:

js

var kendogridselection = function (gridid, pagerselector) {     var $grid = this;     $grid.selectedrows = [];     $grid.gridid = gridid;     $grid.pagerselector = pagerselector;     $grid.grid = $($grid.gridid).data('kendogrid');     $grid.pager = $($grid.pagerselector).data('kendopager');     $grid.gridcheckboxes = $('input[type=checkbox]', $grid.gridid);     $grid.gridrows = $('table tbody tr', $grid.gridid);     $grid.refreshbutton = $('.refreshbutton', $grid.gridid);      $grid.binduievents = function () {         $grid.gridcheckboxes = $('input[type=checkbox]', $grid.gridid);         $grid.gridrows = $('.row', $grid.gridid);          // row click event         /*$($grid.gridrows).click(function (e) {             if (!$(e.target).parent().hasclass('k-hierarchy-cell')) $(this).find('input[type=checkbox]').click();         });*/          // checkbock click event         $($grid.gridcheckboxes).click(function (e) {             console.log('checkbox clicked!');             e.stoppropagation();             var $t = $(this);             var checkboxid = $t.attr('id');             var thisrow = $t.closest('tr');              if ($t.is(':checked')) {                 thisrow.addclass('k-state-selected');                 // add selected[]                 if ($.inarray(checkboxid, $grid.selectedrows) === -1) $grid.selectedrows.push(checkboxid);             } else {                 thisrow.removeclass('k-state-selected');                 // remove selected[]                 $grid.selectedrows.splice($.inarray(checkboxid, $grid.selectedrows), 1);             }         });     }     $grid.gridpersistselected = function () {         $.each($grid.selectedrows, function () {             var $t = $('#' + this);             if ($t) $t.click();         });     }     $grid.pagerchange = function () {         $grid.binduievents();         $grid.gridpersistselected();     }     $grid.refresh = function () {         $grid.selectedrows = [];         $grid.gridcheckboxes.attr('checked', false);         console.log('refresh clicked.');         console.log('$grid.selectedrows: '+$grid.selectedrows);     }      // init     $grid.pagerchange();     // $grid.pager.bind("change", $grid.pagerchange);     // unbind refresh button, rebind     // refresh button     $grid.refreshbutton.click(function(){         console.log('reset!');          $grid.refresh();     });      $('.seeselectedrowsarray').click(function(){         console.log($grid.selectedrows);     });      return {         selectedrows: $grid.selectedrows,         refresh: $grid.refresh,     } }  $(function(){     window.activethreatsgrid = new kendogridselection('.grid', '.pager');    $('.seeselectedrowsarray2').click(function(){         console.log(activethreatsgrid.selectedrows);     }); });

html

<div class='grid'>     <div class='row'>         <label><input type="checkbox" id="item1"> </label>     </div>     <div class='row'>         <label><input type="checkbox" id="item2"> </label>     </div>     <div class='row'>         <label><input type="checkbox" id="item3"> </label>     </div>     <div class='row'>         <label><input type="checkbox" id="item4"> </label>     </div>     <div class='row'>         <label><input type="checkbox" id="item5"> </label>     </div>     <div class='pager'>         <input type="button" value="refresh" class="refreshbutton">     </div>         <div><input type="button" value="seeselectedrowsarray" class="seeselectedrowsarray"></div>         <div><input type="button" value="seeselectedrowsarray2" class="seeselectedrowsarray2"></div> </div>

css

.row{background:blue; height:20px; width:100px; margin-bottom:5px;}

jsfiddle

demo

what happening:

  • when click on multiple checkboxes, click seeselectedrowsarray, correct values in array. can many times , still correct values.
  • when hit refresh button, console.logs tell me selectedrows array empty. when click seeselectedrowsarray, array empty (expected). when click seeselectedrowsarray2, array still has values in it.

update 1

what have found if bind $grid.selectedrows button click within class, gets current values, after refresh. if bind public selectedrows button click outside of class, after refresh button clicked, selectedrows no longer updates , gets stuck @ value before refresh.

why button bound internally show correct array values, while button bound outside of class public selectedrows property no longer updates after refresh button clicked?

any appreciated!

your problem lies in how returning/tracking references object.

in constructor, set $grid = this

however, return new object result of function:

return {     selectedrows: $grid.selectedrows,     refresh: $grid.refresh, }

that returned object holds reference current value of $grid.selectedrows

when refresh method sets $grid.selectedrows new array breaks associated value returned object remains set original array.

change refresh from:

$grid.selectedrows = []

to:

$grid.selectedrows.length = 0;

demo


Comments

Post a Comment

Popular posts from this blog

java - Run a .jar on Heroku -

-
i trying run .jar file on heroku, , can't find instructions anywhere on how this. have read wants me compile uploading heroku. possible, , if is, how this? if helps, trying run minecraft craftbukkit server, , don't have pom.xml file yet. you didn't provide details i'll try give , people reaches question way it. first of all, create heroku account , create heroku application (assumed have done that). second, need generate application jar , upload heroku. so, open terminal , install heroku cli (assuming unix terminal): $ sudo npm install -g heroku-cli you need have npm , nodejs installed, can check link: https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-16-04 once done that, can use npm update node version acceptable heroku-cli: $ sudo npm install -g n $ sudo n 7.10.0 and run: $ sudo npm install -g heroku-cli in order deploy jars, need install deploy plugin: $ sudo heroku plugins:install heroku-cli-deploy ...
Read more

java - Jtable duplicate Rows -

-
Image
when add new rows in jtable duplicate rows many times this method update jtable public final void tableaucomande(){ ((defaulttablemodel)tabcommande.getmodel()).getdatavector().clear(); session s=hibernateutil.getsessionfactory().opensession(); criteria cr1= s.createcriteria(commande.class); list <commande> lcs=cr1.list() ; criteria cr2= s.createcriteria(lignecommande.class); list <lignecommande> lck=cr2.list() ; if(lcs.size()!=0 && lck.size()!=0) { (commande lc:lcs) { for(lignecommande lig:lck){ ((defaulttablemodel)tabcommande.getmodel()).addrow(new object[]{ lc.getid_cmd(),lc.getnumcmd(),lc.getdate_cmd(),lc.getclient().getnomprenom(), lig.getproduit().getlib_prd(),lig.getquantite(),lig.getproduit().getid_prd() }); } } // tabcommande.setrowselectioninterval(tabcommande.getrowcount()-1,tabcommande.getrowcount()-1); } } this code add add data rows displaye...
Read more

validation - How to pass paramaters like unix into windows batch file -

-
i need pass various parameters .cmd file unix format file.cmd -configuration=value -source=value -flag but, try this: startlocal @echo off cls setlocal set cmdline=%* set configuration= set source= set badargs= set validation= goto main :splitargs echo splitargs(%*) if "%*" neq "" ( /f "tokens=1,2,* delims== " %%i in ("%*") call :assignkeyvalue %%i %%j & call :splitargs %%k ) goto :eof :assignkeyvalue echo assignkeyvalue(%1, %2) if /i %1==-configuration ( set configuration=%2 ) else if /i %1==-source ( set source=%2 ) else ( rem append unrecognised [key,value] badargs echo unknown key %1 set badargs=%badargs%[%1, %2] ) goto :eof :validate echo validating set validation=fail if defined configuration ( echo -configuration ok if defined source ( echo -source ok if not defined badargs ( set validation=success ) ) ) goto :eof :main cl...
Read more