Show All Columns throws a jQuery error

[njaParticipant]

Hey there,

Has anybody run across a problem where triggering the grid show/hide for columns causes a jQuery error?

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script: http://<localhost>/Scripts/jquery-1.10.2.js:643

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            // Create jqxButton widget to show all the columns at once.
            $("#showColumnsButton").jqxButton({ height: '26px', theme: 'office' });
            $("#showColumnsButton").on('click', function () {
               $("#jqxgrid").jqxGrid('beginupdate');

                var items = $("#jqxWidget").jqxListBox('getItems');
                for (var i = 0; i < items.length; i++) {
                    if (!items[i].checked){
                        $("#jqxWidget").jqxListBox('checkIndex', i);
                    }

                }
              $("#jqxgrid").jqxGrid('endupdate');

            });

Which calls:

            $("#jqxWidget").on('checkChange', function (event) {
                $("#jqxgrid").jqxGrid('beginupdate');
                if (event.args.checked) {
                    $("#jqxgrid").jqxGrid('showcolumn', event.args.value);
                }
                else {
                    $("#jqxgrid").jqxGrid('hidecolumn', event.args.value);
                }
                $("#jqxgrid").jqxGrid('endupdate');
            });

[DimitarParticipant]

Hello nja,

This sounds like an “infinite loop” issue, but your code seems fine. However, I do not think you need to call beginupdate and endupdate for single grid operations only (showcolumn/hidecolumn) or where no grid methods are called between them (first code block). Please remove the calls to these and try again. If the issue persists, please share how many times are the checkIndex method and the checkChange event called when you click the button. You can determine this with a simple counter variable and console.log().

Best Regards,
Dimitar

jQWidgets team
http://www.jqwidgets.com/

[njaParticipant]

Hi,
I removed the beginupdate and endupdate and that seems to have fixed it. Sorry, must have copied them in from a different code sample.

thanks,
nja

[Author]

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