.NET Fiddle Newsletter
Eric PopivkerInteractive fiddles to learn the latest .NET Skills
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 28 | Founded | 6 years ago | Last Issue | 7 days ago |
| Active | |||||
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dotnetfiddle.substack.comLatest Issues
FileSystemWatcher: The Native File Spy You Didn't Know You Had
Your app can watch a file like a nosy neighbor peeking through blinds - no polling loop required.
FileSystemWatcher is a built-in .NET class that monitors a folder and fires events when files get created, changed, renamed, or deleted. No n...
Your App Already Knows Everything About the Machine It's Running On
Your code can spy on its own host machine without a single line of P/Invoke.
The Environment class in .NET hands you the OS version, machine name, processor count, uptime, and more, all baked in. No WMI queries, no shelling out to PowerShe...
FluentValidation on dotnetfiddle.net: Rules Without the Project Baggage
FluentValidation doesn’t need a project, a DI container, or an afternoon of scaffolding to prove itself.
It’s a FluentValidation library that lets you write validation rules as chainable method calls instead of stacking attributes on your...
Binary File I/O: FileStream and BinaryWriter Basics
Ever open a .bin file in Notepad and get unreadable garbage? That’s not corruption, that’s the whole point.
BinaryWriter paired with FileStream lets you write raw bytes straight to disk, skipping the text-encoding tax completely. An int st...
You Can Run a Full MVC App in Your Browser — No Install Required
Most devs use dotnetfiddle.net for quick console snippets and forget it’s there. But it also runs a full MVC project — controller, routing, model binding, the whole thing — right in the browser.
Pick “MVC” from the project type dropdown an...
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