Bits of .NET

Forgetting to dispose resources causes memory leaks. using statement guarantees disposal even if exception occurs.

❌ Manual Disposal (Risky):

var stream = File.OpenRead("file.txt");
// If exception here, stream never closed!
var data = ReadData(stream);
stream.Dispose();

✅ Automatic (Safe):

using (var stream = File.OpenRead("file.txt"))
{
    var data = ReadData(stream);
}  // stream.Dispose() called automatically, even on exception!

C# 8+ Simplified:

using var stream = File.OpenRead("file.txt");
// Disposed at end of method automatically

Never leak file handles, connections, or locks again!