wpf - using Icomparer to sort with special condition -

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in project have need sort datagrid column if condition holds true item should @ top(first item) of sorted list. otherwise if condition not hold item should simple sorted list.

i tries using sorting event , defining icomparer not manage desired behavior. code put in icomparer can return item condition true @ top , rest item in sorted fashion.

please can help

it sounds want sort "certain condition" other sort critiria. should case of prepending condition list of sort descriptions in collectionview.


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