What does the .NET String.Length property return? Surrogate neutral length or complete character length

Question

The documentation and language varies between VS 2008 and 2010:

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VS 2008 Documentation

Internally, the text is stored as a read

Answer 1

String.Length does not account for surrogate pairs, it only counts UTF-16 chars (i.e. chars are always 2 bytes) - surrogate pairs are counted as 2 chars.