Maintain T4-backed C# generator templates in the DataTables repository. Use when changing .tt files or their generated .cs outputs, fixing generated C# compilation, adding a new TextTemplatingFilePreprocessor template, resolving drift between a T4 template and LastGenOutput, or regenerating DataTables generator code. Always edit the .tt source first and regenerate the .cs with T4; never treat the generated .cs as the source of truth.
2026-07-12