Changing CsvConfiguration after CsvWriter initialization

[b-maslennikov]

Is it possible to change CsvConfiguration after CsvWriter initialization?
in older versions I used this:
using var csv = new CsvWriter(stream, culture); csv.Configuration.PrepareHeaderForMatch = x => x.Header.Trim().ToUpper();

now it doesn't work and I have to create csvConfiguration before writer initialization:
var config = new CsvConfiguration(culture) { PrepareHeaderForMatch = x => x.Header.Trim().ToUpper(); }; using var csv = new CsvWriter(stream, config);

I tried changing CsvConfiguration object in Context property:
csv.Context.CsvConfiguration.Prepare...
and it doesn't seem to bee working as well

[JoshClose]

No it's essentially read only. All the values that the writer uses are copied local.