Filter List in Flutter (FLF)

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Hi everyone, I’m trying to create a filter for a data list in Flutter. I’m using the model generator at quicktype.io, and I’m also applying the MVC pattern.

productTemp.sort((a, b) => b.productPrice.compareTo(a.productPrice));
productTemp = productTemp.where((x) =>
    x.productName.toLowerCase().contains(inputText.toLowerCase()));
productTemp = productTemp.toSet().toList();

Is there any incorrect implementation causing the following error?

[ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: type 'WhereIterable' is not a subtype of type 'List'

Solution
Use where to accomplish this task.

Your productTemp is a List, but the where method returns an Iterable. You need to convert the output of where to a List.

productTemp.where(
  (x) => x.productName.toLowerCase().contains(inputText.toLowerCase())
).toList();