Why can't Ifind Input Id in sap ui5 using the function sap.u.getcore.byId()? -

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i'm trying access input field in controller of ui5 i'm not able fetch input box?

i'm using 

sap.ui.getcore().byid('id of input');

i faced similar issue when started using ui5. id not same anymore because sap ui5 dynamically concatenates other properties id different. hope helps. try finding out id after has been changed resources.


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