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 …
Of all the methods available on the Enumerable class, OfType<T> is arguably one of the most useful and yet under utilized method. For example, you have a list of Cat and Dog objects, all inheriting from a common Animal class, but occasionally you want to perform operations on only the dogs or cats, and that’s …
Functional programming with Linq – Enumerable.OfType Read More »
If you have an interface like this: with a concrete class like this, which you want to wire up with Castle: Then here’s the syntax to specify the component in your Castle Windsor configuration file Similarly, imagine if you have more than one generic type parameter: Remember, you need to use the back tick (`), …
Castle Windsor Tips – specifying generic types in config file Read More »
I ran into a versioning problem when I tried to use the latest version of FluentNHibernate with the latest version of LINQ to NHibernate because LINQ to NHibernate is built using a later version of the NHibernate binaries. After doing a little search, I found a version of NHibernate which both LINQ to NHibernate and …
NHibernate 2.1.0 GA with LINQ to NHibernate and FluentNHibernate Read More »
Whilst working on an image view I needed the ability to bind the value of a Slider to a ScaleTransform as a percentage value and at the same time display the value of the slider in a label. So for a zoom range from 1% to 250% you would usually set the Minimum and Maximum …
WPF – how to bind ScaleTransform to Slider, percentage style! Read More »
Back in my first post on AOP, I mentioned the Memoizer on D. Patrick Caldwell’s blog, well, today I came across a situation where I was able to use it but first I needed to make a few modifications because the original implementation didn’t satisfy some of my requirements: There is no cap on the …
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