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c#listienumerablecase-sensitive

List 'Except' comparison - ignore case

I have two lists and I want to compare them and get the differences, while ignoring any case differences.

I have used the following code to get the differences between the two lists but it does not ignore case differences.

IEnumerable<string> diff = list1.Except(list2);
List<string> differenceList = diff.ToList<string>();

I tried this:

IEnumerable<string> diff = list1.Except(list2, StringComparison.OrdinalIgnoreCase);

but Except does not seem to be having a string case check of that sort (so error). I'm hoping there's a work around.

Solution

  • Here's what worked: 

    IEnumerable<string> differenceQuery = inputTable.Except(strArrList,
                                                        StringComparer.OrdinalIgnoreCase);

    Used StringComparer instead of StringComparison.