Validate Input Phone Number in Microsoft Dynamics CRM using JavaScript
Sometime we get requirement to validate a phone number like to check only numeric value allowed with all round bracket and '+' sign etc in the number. So below is a basic JavaScript fucntion which validates a phone number like: (022)6655-7878 or +91-7878787878 or +44-6756-6767-4234 and so on function CheckPhoneNoFormat(context) { var oField = context.getEventSource().getValue(); if (typeof (oField) != "undefined" && oField != null) { try { var telnum = oField; // Convert into a string and check that we were provided with something var telnum = telnum + " "; if (telnum.length == 1) { telNumberErrorNo = 1; return false ...