Bits of .NET

Unsubscribed event handlers are one of the biggest real-world leak causes.

publisher.SomeEvent += OnEvent; // stays forever if not removed

⚠ Why It Leaks

• The publisher holds a reference to your object

• GC can’t collect your object

• Memory keeps climbing

✔ The Fix

Always unsubscribe:

publisher.SomeEvent -= OnEvent;

Or use weak events or IDisposable patterns.

💡 Bonus

Use tools like:

• dotMemory

• PerfView

• Visual Studio’s Memory Analyzer