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I need to create a javascript where in if the save button is pressed it will show a confirmation pop up if the user want's to save it or no. Now my only problem is I don't know how to call a input field to the javascript function. For example I have this input field <apex:inputField value="{!myVar.item.SPR_Price__c}"> How can I call it to the Javascript function?. Thanks in advance.

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Just add an ID to your apex:inputField and then access it in javascript using

var spr_price= document.getElementById("input_spr_price");

You can then access your value using

spr_price.value
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  • Hi @PierrickBrun. Well I already tried that but it does not work. The thing is my input field is. inside a <apex:form> then an <apex:pageBlock> then <apex:pageBlockSection>, then <Apex:Column> – JMDF Oct 20 '16 at 18:55
  • Is your javascript button part of your visualforce page or is it called by a custom button ? Note that Salesforce adds prefix to the ID (eg. id="j_id0:j_id1:test") So you could want tu use document.querySelectorAll("[id$=test]") and iterate over the elements. Look at this JsFiddle : jsfiddle.net/BBaFa/2 – Pierrick Brun Oct 21 '16 at 9:18
  • Also querySelectorAll doesn't work on IE 8 w3schools.com/jsref/met_document_queryselectorall.asp – Pierrick Brun Oct 21 '16 at 9:20
  • Yes my javascript is part of the visualforce page and I will call it on the <apex:commandbutton onlick="Javascript function()"> – JMDF Oct 21 '16 at 12:57
  • Doesn't using <apex:commandbutton onlick="Javascript function({!myVar.item.SPR_Price__c})"> work ? – Pierrick Brun Oct 21 '16 at 13:08

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