Possible pitfalls of using this (extension method based) shorthand

by

We independently came up with the exact same extension method name and implementation: Null-propagating extension method. So we don’t think it’s confusing or an abuse of extension methods.

I would write your “multiple levels” example with chaining as follows:

propertyValue1 = myObject.IfNotNull(o => o.ObjectProp).IfNotNull(p => p.StringProperty);

There’s a now-closed bug on Microsoft Connect that proposed “?.” as a new C# operator that would perform this null propagation. Mads Torgersen (from the C# language team) briefly explained why they won’t implement it.

More Related Contents:

  1. What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
  2. Why is there no ForEach extension method on IEnumerable?
  3. Convert string[] to int[] in one line of code using LINQ
  4. Detect target framework version at compile time
  5. Impossible to use ref and out for first (“this”) parameter in Extension methods?
  6. Extension methods must be defined in a non-generic static class
  7. No type inference with generic extension method
  8. Convert string to nullable type (int, double, etc…)
  9. Anonymous Types – Are there any distingushing characteristics?
  10. Extension methods syntax vs query syntax
  11. Resolving extension methods/LINQ ambiguity
  12. What is the performance of the Last() extension method for List?
  13. Ambiguous call between two C# extension generic methods one where T:class and other where T:struct
  14. Can I use extension methods and LINQ in .NET 2.0 or 3.0?
  15. Using extension methods in .NET 2.0?
  16. Warm-up when calling methods in C#
  17. Can’t await async extension method
  18. Is it possible to extend arrays in C#?
  19. Why are “static” and “this” needed for extension methods, and how is their memory allocated?
  20. What causes “extension methods cannot be dynamically dispatched” here?
  21. Clone Enity framework POCO
  22. What is “Best Practice” For Comparing Two Instances of a Reference Type?
  23. Comparing strings with tolerance
  24. How to copy a file while it is being used by another process
  25. Async await vs GetAwaiter().GetResult() and callback
  26. Give some command to View in MVVM
  27. Overloading getter and setter causes a stack overflow in C# [duplicate]
  28. How to get around lack of covariance with IReadOnlyDictionary?
  29. Ensure that HttpConfiguration.EnsureInitialized()
  30. How to empty/flush Windows READ disk cache in C#?

Leave a Comment