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I have different dependent pick lists. Example Pick list-1 If I select country _India then in states pick-list-2 filed there must be only Indian states.After selecting the State_Karnataka the pick-list-3 must be only for Cities in Karnataka.

I am using Lightning so for my java-script code I just need to pass controlling Field API name.

How can I access the Controlling field API name through Apex code ?

I know it can be done through Tooling API but not sure how.

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You are looking for the getController() method on the DescribeFieldResult Class.

SObjectField controllingPicklist = MyObject__c.MyPicklist__c.getDescribe().getController();
  • How can I pass the pick list name as a string ? As I want to pass the pick list field name and Object name Dynamically. Thanks for giving me above solution. – Nupur Bhagat May 2 '18 at 6:28
  • @NupurBhagat Replace MyObject__c.MyPicklist__c in Adrian's code with MyObject__c.SObjectType.getDescribe().fields.getMap().get('MyPickList__c'). – Keith C May 2 '18 at 8:24

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