Using lambda expressions for event handlers

by

There are no performance implications since the compiler will translate your lambda expression into an equivalent delegate. Lambda expressions are nothing more than a language feature that the compiler translates into the exact same code that you are used to working with.

The compiler will convert the code you have to something like this:

public partial class MyPage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //snip
        MyButton.Click += new EventHandler(delegate (Object o, EventArgs a) 
        {
            //snip
        });
    }
}

More Related Contents:

  1. How to remove a lambda event handler [duplicate]
  2. Weak event handler model for use with lambdas
  3. How to perform Join between multiple tables in LINQ lambda
  4. Generating permutations of a set (most efficiently)
  5. How to pass values across the pages in ASP.net without using Session
  6. Using the iterator variable of foreach loop in a lambda expression – why fails?
  7. Is String.Contains() faster than String.IndexOf()?
  8. How can I assign a Func conditionally between lambdas using the conditional ternary operator?
  9. For vs. Linq – Performance vs. Future
  10. What is quicker, switch on string or elseif on type?
  11. Most efficient way to insert Rows into MySQL Database
  12. Lambda expression not returning expected MemberInfo
  13. Get the property, as a string, from an Expression
  14. Why does the c# compiler emit Activator.CreateInstance when calling new in with a generic type with a new() constraint?
  15. Determine list of event handlers bound to event
  16. How to pass an event to a method?
  17. C# / F# Performance comparison
  18. C# => operator?
  19. C# – Which is the best alternative to ‘switch on type’? [duplicate]
  20. How can I programmatically limit my program’s CPU usage to below 70%?
  21. Can a C# lambda expression have more than one statement?
  22. Why is Parallel.ForEach much faster then AsParallel().ForAll() even though MSDN suggests otherwise?
  23. Does String.GetHashCode consider the full string or only part of it?
  24. String.IsNullOrWhiteSpace in LINQ Expression
  25. try catch performance
  26. Is the conditional operator slow?
  27. Linq – Top value from each group
  28. Subscribe to INotifyPropertyChanged for nested (child) objects
  29. Get the property name used in a Lambda Expression in .NET 3.5
  30. How to detect multiple keys down onkeydown event in wpf?

Leave a Comment