Remove Duplicates from cascade lookup column

Blog Post created by aartishaw on Nov 3, 2016

Scenario: We have two lookup column . Column A contains Country and Column B contains Sites.

Based on country selection sites will get filter out .

Issue: Since Sites contains duplicates value , in drop-down also it get visible.

Solution: 1. In nintex form , save client id for the column B dropdown in nintex form. In below code client id is "txtsite".

Then using $("select[id="+txtsite+"]>option") we get all list of values in dropdown .

On "Mousedown" event , create array and check each value of dropdown , if value is already in array remove value otherwise add value to array. Once all check has been done, assign back the array to control value.


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