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What are partial classes?

Senior C#
Quick Answer Partial classes split a class definition across multiple files, merged by the compiler. The most common use is separating auto-generated code (like EF migrations or Winforms designer code) from hand-written logic, keeping each file focused and manageable.

Answer

Partial classes split a class across multiple files, useful for separating generated code from custom logic.

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This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

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