Salesforce | Calculate number of years between two dates in apex class

| By Webner

Sample Code: Date date1 = System.today(); Date date2 = System.today().addMonths(30); system.debug(‘No of months === >>>> ‘ + date1.monthsBetween(date2)); String noOfYears = String.valueOf(date1.monthsBetween(date2) / 12) + ‘ Year(s) ‘ + String.valueOf(Math.mod(date1.monthsBetween(date2), 12)) + ‘ Month(s)’; system.debug(‘No of years ‘ + noOfYears);

Salesforce | Visualforce | Error : DML currently not allowed exception on creation of the record on an Object

| By Webner

When creating a record on the document object using Rest API, Salesforce did not allow to execute the DML command from the Visualforce component. Reason: When we try to pass dynamic values from the Visualforce Component to the Apex method,

Javascript | Unable to get content of HTML while converting HTML page to PDF

| By Webner

Problem : Unable to get content of HTML while converting HTML page to PDF. Solution : You can use the javascript if you want to get content of HTML while converting it into PDF : <HTML> <head> <script type=”text/javascript”> function submitForPDF() {

HTML text box should only accept numbers and dot

| By Webner

You can use the following javascript code to check textbox value: <html> <head> <script language=”Javascript”> function isNumberKey(evt) { var re=new RegExp(/^[0-9]*.?[0-9]*$/); if(document.getElementById(“text”).value.match(re)) { alert(“match”); } else { alert(“no match”); return false; } } </script> </head> <body> <input id=”text” type=”text” value=”0″

Javascript Calendar Problem on Chrome and Safari browsers

| By Webner

While working in a project, we faced a problem with using a calendar on a webpage. It was working fine for Mozilla Firefox but not for Chrome and Safari. Initially we had this code: <input type=”text” name=”startdate” id=”startdate” class=”form-control datepicker”