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csharp-winforms

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String Manipulation Form — C# desktop app with live TextChanged updates for character & word count, first & last word tracking, + case operations, trim, remove spaces, find & replace (all or first only), and substring extraction + full validation. 5th project in the WinForms self-practice series | Course 14 – C# Level 1 | ProgrammingAdvices Roadmap

  • Updated Jul 11, 2026
  • C#

C# WinForms calculator — screen TextBox as data model, 6-case intelligent delete, percentage with undo, division-by-zero protection, and a one-click dark/light theme toggle. Only 3 controls: Form, TextBox, Button.

  • Updated Jul 14, 2026
  • C#

Age Calculator Form — C# desktop app that calculates exact age in years, months, and days, plus total time lived in all units, day of week born, and days to next birthday. Three-layer input validation with granular clear logic. Fourth project in the WinForms self-practice series | Course 14 – C# Level 1 | Programming Advices Roadmap.

  • Updated Jul 8, 2026
  • C#

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