One of the more obscure things I have had to do inside a Castle config is to specify an IEnumerable<T> instance which required taking the technique I showed in this post a little further: I specified the lifestyle of this IEnumerable<T> to be singleton as in most cases where you would want to do something …
Castle Windsor Tips – specifying IEnumerable
Usually an enum type is used to define a set of constants such as colours, etc. but you can also use it to define bit flags and stored any combination of the defined values. You use the FlagsAttribute attribute to create an enum type as bit flags which you can then interact with using the …
You should already know that in C# all types derive from System.Object and that C# supports both reference types (which are allocated onto the heap) as well as value types (primitives, enum, struct, etc. which are allocated onto the stack). One of the key differences between value types and references types is that when you …
Oh, the Pain! For a long time, unit testing non-public methods in C# has been a pain in the back side. In order to test a non-public method (most likely private methods) you have a number of choices each with an undesired effect: The easiest way out is to make the methods public. However, this …
.Net Tips – using InternalsVisibleTo attribute to help testing non-public methods Read More »
As you might know already, an object is immutable if its state doesn’t change once it has been created. In C# the most used immutable type is string, this means every time you modify the value of a string variable you are actually creating a new string object and updating the reference of the variable …
.Net Tips – making a serializable immutable struct Read More »
enum is a tremendously useful structure in C#, but when defining a new enum there is one thing you should always ask yourself: What should the default value be for my enum? The problem with default value is that enum is really an int underneath, and as do all integers in C# an enum has …
.Net Tips – marking the default enum value ‘Undefined’ Read More »
If you’re reading this then you should already know what an enum is in C# and that the underlying type of an enum element is int and you can convert between int and enum using casting: However, sometimes you want to convert an enum element to and from strings instead of ints because: they’re more …
Runtime type conversion is something we all have to do from time to time, and in C#, type conversion is usually done using either the as keyword or casting. Here’s a quick glance of how the two approaches differ: Null reference Conversion failure User-defined conversion Performance as Null Null Ignored Fast casting Null Exception Used …
AMFVO is short for Action Message Format (AMF) Value Object (VO). AMF is a binary format used to serialize ActionScript objects, primarily used to exchange data between a Flash application and a remote service; a VO is also known as a Data Transfer Object (DTO), it is used to transfer data between application subsystems. An …
In C#, there are two ways for you to declare a constant variable, you can either declare the variable as readonly, or const: readonly A variable declared with the readonly modifier can only be assigned as part of the declaration or in the class’s constructor: const A variable declared with the const modifier must be …
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