Question

I get some invalid date from DB – an invalid characters 0x1E, how can I replace it with this – “” ?

Answer 1

This error exists if to try to serialize xml-characters, here is the similar question.

The most simple solution is to just remove the forbidden characters from the source string:

var newString = new string(
    str.Select(c => (int)c)
    .Where(i => i >= 32 || i == 9 || i == 10 || i == 13)
    .Select(i => (char)i)
    .ToArray());