--- title: I Let AI Write My C# Backend (Big Mistake) | daily.dev description: AI can build a stunning Avalonia UI in seconds... but what does the code actually look like behind the scenes? In this video, we're exposing the hidden... canonical: https://daily.dev/posts/i-let-ai-write-my-c-backend-big-mistake--y70dygquy twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: I Let AI Write My C# Backend (Big Mistake) | daily.dev og:description: AI can build a stunning Avalonia UI in seconds... but what does the code actually look like behind the scenes? In this video, we're exposing the hidden... og:url: https://daily.dev/posts/i-let-ai-write-my-c-backend-big-mistake--y70dygquy og:image: https://api.daily.dev/og/posts/y70dYgqUy.png og:image:alt: I Let AI Write My C# Backend (Big Mistake) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # I Let AI Write My C# Backend (Big Mistake) **[AngelSix](https://daily.dev/sources/angelsix)** · 27 min read · 0 upvotes · 0 comments ## Summary AI can build a stunning Avalonia UI in seconds... but what does the code actually look like behind the scenes? In this video, we're exposing the hidden dangers of AI-generated C# code. Sure, the Jobs Page looks great on the surface, but underneath, it’s a maintenance nightmare filled with hard-coded values, massive code duplication, and structural disasters. I'm breaking down exactly why trusting the "pretty" AI output is dangerous, and we begin the process of building an Avalonia Coder AI agent to clean up the mess. 👉 Get more free knowledge on C#, hardware design, and more: http://www.angelsix.com ⏱️ Chapters: 0:00 - The Danger of "Pretty" AI UIs 0:44 - Why AI Code is a Maintenance Nightmare 1:34 - Setting Up the Avalonia Coder AI Agent 2:41 - Fixing Hard-Coded Colors & Gradients 3:35 - Refactoring Duplicated Code 6:54 - Sorting Out Dropdowns & Layout Controls 10:12 - Fixing Grid Spacing & Row Definitions 14:44 - The Progress Bar Performance Disaster 19:37 - Resolving SVG Icon & Pixel Scaling Issues 22:12 - Structural Problems in the Table Header 23:52 - Fixing New Bugs Introduced During Refactoring 26:45 - How to Properly Oversee AI Code #CSharp #AvaloniaUI #AICoding #SoftwareArchitecture #AngelSix ## Full article daily.dev links to this article rather than hosting it. 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