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cannot call methods on iconList prior to initialization; attempted to call method 'getColumns

Eslam_ElbyalyApr 9 2021

Hi, I am using APEX 20.2. I am trying to call getColumns() method of "iconList" widget. I run the page then change the view to "icon" view then call the method using "apex.region('IG').widget().interactiveGrid('getViews','icon').view$.iconList('getColumns');"
but I face error: "cannot call methods on iconList prior to initialization; attempted to call method 'getColumns"
How should I initialize the iconList widget?

Added on Apr 9 2021

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