https://community.appian.com/discussions/f/rules/6596/i-have-question-related-to-cdt-array-i-have-two-cdt-arrays-cdt1-and-cdt2-iI have Question related to CDT Array. I have two CDT Arrays CDT1 and CDT2 I have to compare CDT1.id = CDT2.id if the ids match then CDT1.value is to be update by CDT2.value Please let me know if you have any solution. OriginalPostID-186559 OriginalPostIDen-USTelligent Community 12https://community.appian.com/thread/25949?ContentTypeID=1Thu, 31 Dec 2015 16:11:42 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:6e92f0d1-a1ca-4373-981a-92297b7750b7PhilBBit delayed, but I was thinking more like something below.<br /><br />A supporting rule, eg rule!myRule(), with two non-array inputs of CDT1 and CDT2 of the equivalent types:<br /><br />type!CDT2(<br /> value: if(<br /> isnull(<br /> ri!CDT1.value<br /> ),<br /> ri!CDT2.value,<br /> ri!CDT1.value<br /> )<br />)<br /><br />...then a call of that rule within an apply, iterating over the arrays of the two types of CDT:<br /><br />apply(<br /> rule!myRule,<br /> merge(<br /> local!arrayOfCDT1,<br /> local!arrayOfCDT2<br /> )<br />)<br /><br />You could edit the supporting rule to map any number of fields, conditional or otherwise.<div style="clear:both;"></div>https://community.appian.com/thread/25936?ContentTypeID=1Thu, 31 Dec 2015 01:13:44 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:adf58c79-bd7b-44b7-9dd6-507e6f28f650rishijthank you very much @monikar<div style="clear:both;"></div>https://community.appian.com/thread/25935?ContentTypeID=1Thu, 31 Dec 2015 00:58:22 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:08779533-d7a3-40f8-871e-c1e3f93f06c5monikarHi rishij,<br /><br />This is my understanding of the requirement: Value of CDT1.value is to be replaced with CDT2.value when the CDT2.id matches CDT1.id<br />For this I propose the following solution in two steps.<br /><br />1. To get the updated array of CDT1.value you can use the displayValue function <br /><br />Ref code: apply(fn!displyValue(value: _, inArray: CDT1.id, replacement: CDT2.value, default: default value), CDT2.id)<br /><br />2. In order to set it to CDT1.value you can use the shared component specified by tim.clarke.<br /><br />Ref code: <br />updatecdt(CDT1, { value: {updated array} })<div style="clear:both;"></div>https://community.appian.com/thread/25923?ContentTypeID=1Wed, 30 Dec 2015 19:02:48 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d486dd76-a383-4805-984a-d8d9f1ba20e7rishijhey philip, do u have some example or code snippet, that i could use for this.<br /><div style="clear:both;"></div>https://community.appian.com/thread/25922?ContentTypeID=1Wed, 30 Dec 2015 15:49:05 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9ddd79ff-b134-42f6-98b0-402ca85a6acePhilBIf you want to do this out-of-the-box, then you could also use an apply of a rule that takes a single instance of each CDT and then uses a type constructor with conditionally set field values.<div style="clear:both;"></div>https://community.appian.com/thread/25913?ContentTypeID=1Wed, 30 Dec 2015 09:20:22 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9ca48228-41ba-4b9a-a537-9912e3ec16dcTim<a href="https://forum.appian.com/suite/tempo/records/type/components/item/i8BCLGOdlMUpdGVqT-RV7oRg74uEGJO5yIdNklp-1ZtH3F1tosyebSo7rEoKHh1XQ/view/summary">forum.appian.com/.../summary</a><br /><br />The shared component above will help you with the updating of the value. Should have everything you need.<div style="clear:both;"></div>