Linked Questions

Here is a large number of hidden features discussed for variety of languages. Now I am curious about some hidden features of XAML and WPF? One I have found is the header click event of a ListView &...

Shell scripts are often used as glue, for automation and simple one-off tasks. What are some of your favorite "hidden" features of the Bash shell/scripting language? One feature per answer Give an ...

What is a closure? Do we have them in .NET? If they do exist in .NET, could you please provide a code snippet (preferably in C#) explaining it?

To cut a long story short: I find the Java antipatterns an indispensable resource. For beginners as much as for professionals. I have yet to find something like this for C#. So I'll open up this ...

If I have a switch-case statement where the object in the switch is a string, is it possible to do an IgnoreCase compare? I have for instance: string s = "house"; switch (s) { case "...

How do I check to see if an Application Setting is available? i.e. app.config <?xml version="1.0" encoding="utf-8" ?> <configuration> <appSettings> <add key ="someKey" ...

For c# developers that are staring out to learn Java, are there any big underlying differences between the two languages that should be pointed out? Maybe some people may assume things to be the same,...

The following will cause infinite recursion on the == operator overload method Foo foo1 = null; Foo foo2 = new Foo(); Assert.IsFalse(foo1 == foo2); public static bool operator ==(Foo ...

I'd be interested in some before-and-after c# examples, some non-idiomatic vs idiomatic examples. Non-c# examples would be fine as well if they get the idea across. Thanks.

I want to iterate over the alphabet like so: foreach(char c in alphabet) { //do something with letter } Is an array of chars the best way to do this? (feels hacky) Edit: The metric is "least typing ...

When doing case-insensitive comparisons, is it more efficient to convert the string to upper case or lower case? Does it even matter? It is suggested in this SO post that C# is more efficient with ...

It is not possible to fire an event in C# that has no handlers attached to it. So before each call it is necessary to check if the event is null. if ( MyEvent != null ) { MyEvent( param1, param2 ); ...

I'm learning about Events / Delegates in C#. Could I ask your opinion on the naming/coding style I've chosen (taken from the Head First C# book)? Am teaching a friend about this tomorrow, and am ...

I have seen a few mentions of this idiom (including on SO): // Deliberately empty subscriber public event EventHandler AskQuestion = delegate {}; The upside is clear - it avoids the need to check for ...

There are two weird operators in C#: the true operator the false operator If I understand this right these operators can be used in types which I want to use instead of a boolean expression and where ...