Databases
StackOverflow2013
Postsdbo
POIf variable is null set the value to 0 with jQuery?
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POIf variable is null set the value to 0 with jQuery?
    text
    copied!<p>I am validating some fields and check if the length of a select element is larger than 0. I get the error "'length' is null or not an object" because id$=SelectResult is a listbox and can have no values and therefor return null and var val = $(this).val(); doesn't like that.</p> <pre><code>function checkControls() { var itemLevel = $("select[title='Item Level']").val(); switch (itemLevel) { case 'Strategic Objective': var controlsPassed = 0; $("input[id$=UserField_hiddenSpanData],input[title=Title],select[id$=SelectResult]").each(function(){ var val = $(this).val(); if(val != 0 &amp;&amp; val.length != 0) { //add one to the counter controlsPassed += 1; } }); return (controlsPassed == 3) case 'Milestone Action': var controlsPassed = 0; $("input[title=Target Date],select[id$=SelectResult],input[title=Title],input[id$=UserField_hiddenSpanData],input[title=Start Date],select[title=Strategic Objective],select[title=Strategic Priority]").each(function(){ var val = $(this).val(); if(val != 0 &amp;&amp; val.length != 0) { //add one to the counter controlsPassed += 1; } }); return (controlsPassed == 7) case 'Performance Measure': var controlsPassed = 0; $("select[title=Strategic Objective],input[title=Title],select[id$=SelectResult],select[title=Strategic Priority]").each(function(){ var val = $(this).val(); if(val != 0 &amp;&amp; val.length != 0) { //add one to the counter controlsPassed += 1; } }); return (controlsPassed == 4) case 'Strategic Priority': var controlsPassed = 0; $("input[title=Target Date],select[id$=SelectResult],input[title=Title],input[id$=UserField_hiddenSpanData],input[title=Start Date],select[title=Strategic Objective]").each(function(){ //var ResponsibleBusiness = $("select[id$=SelectResult]").val(); var val = $(this).val(); if(val != 0 &amp;&amp; val.length != 0) { //add one to the counter controlsPassed += 1; } }); return (controlsPassed == 6) } } function PreSaveItem() { return checkControls() } </code></pre>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload