LINQ Exchange

LINQ OfType<> is a useful filtering function for returning items in a collection which match a specific type (or base type). An example might be for getting base items from a listbox of combobox.

An example without OfType:

ColorWrapper x = combo.Items.Where( obj => obj is ColorWrapper ).Cast< ColorWrapper >().FirstOrDefault(cw => cw.Color == value);

An example of LINQ OfType:

ColorWrapper y = combo.Items.OfType<ColorWrapper>().FirstOrDefault(cw => cw.Color == value);

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