Setting Objects to Null/Nothing after use in .NET

by

Karl is absolutely correct, there is no need to set objects to null after use. If an object implements IDisposable, just make sure you call IDisposable.Dispose() when you’re done with that object (wrapped in a try..finally, or, a using() block). But even if you don’t remember to call Dispose(), the finaliser method on the object should be calling Dispose() for you.

I thought this was a good treatment:

Digging into IDisposable

and this

Understanding IDisposable

There isn’t any point in trying to second guess the GC and its management strategies because it’s self tuning and opaque. There was a good discussion about the inner workings with Jeffrey Richter on Dot Net Rocks here: Jeffrey Richter on the Windows Memory Model and
Richters book CLR via C# chapter 20 has a great treatment:

More Related Contents:

  1. What is a NullReferenceException, and how do I fix it?
  2. How to enable assembly bind failure logging (Fusion) in .NET
  3. Why is Dictionary preferred over Hashtable in C#?
  4. How can I read a file even when getting an “in use by another process” exception?
  5. Does using “new” on a struct allocate it on the heap or stack?
  6. What is the difference between Nullable.HasValue or Nullable != null?
  7. Best /Fastest way to read an Excel Sheet into a DataTable?
  8. What strategies and tools are useful for finding memory leaks in .NET?
  9. Measuring code execution time
  10. How to fix a opacity bug with DrawToBitmap on WebBrowser Control?
  11. .NET Integer vs Int16?
  12. Checking file/folder access permission
  13. What are the benefits of resource(.resx) files?
  14. C# memory address and variable
  15. User Activity Logging, Telemetry (and Variables in Global Exception Handlers)
  16. Easier way of writing null or empty?
  17. Event Signature in .NET — Using a Strong Typed ‘Sender’? [closed]
  18. Select either a file or folder from the same dialog in .NET
  19. Sorting an array of folder names like Windows Explorer (Numerically and Alphabetically) – VB.NET
  20. How does async works in C#?
  21. Convert DateTime to a specified Format
  22. What causes memory fragmentation in .NET
  23. Consume a SOAP web service without relying on the app.config
  24. What do ref, val and out mean on method parameters?
  25. Why does null need an explicit type cast here? [duplicate]
  26. Get ListView Visible items
  27. How does the “Using” statement translate from C# to VB?
  28. Objects implicitly instantiated in vb.net?
  29. How do I make a form modal in Windows Forms?
  30. Large Object Heap Compaction, when is it good?

Leave a Comment