When and Why Should I Use TStringBuilder?

Question

I converted my program from Delphi 4 to Delphi 2009 a year ago, mainly to make the jump to Unicode, but also to gain the benefits of all those years of Delphi improvements.<

Answer 1

TStringBuilder was introduced solely to provide a source code compatible mechanism for applications to perform string handling in Delphi and Delphi.NET. You sacrifice some speed in Delphi for some potentially significant benefits in Delphi.NET

The StringBuilder concept in .NET addresses performance issues with the string implementation on that platform, issues that the Delphi (native code) platform simply does not have.

If you are not writing code that needs to be compiled for both native code and Delphi.NET then there is simply no reason to use TStringBuilder.