The WithContext extesnion method adds context to an IEnumerable Sequence like previous and next element but also the index in the sequence and even more: IsFirst, IsLast, Preceding, Following, Other etc. [More]

An extension method that makes paging in Linq to objects easy and efficient. [More]

Lazy Has some disadvantages when you use it for caching properties, If you use other members of a class, it has to be set in the constructor. I created an anternative so you can implement the property in the property. Also caching IEnumerable makes no sence because you get a new iterator all the time so in fact it is not cached at all. This is also fixed, [More]

Most IoC Containers uses reflection for inversion of control. This makes it hard to debug and the compiler can not check the creation at compile time. That is why I ceated to class that makes it possible to tell the container how to create a new object by providing it a Func (lambda). This makes debugging much easier when it doesn't works as you expected. [More]

Creating of unit tests of al varations of 1 bool parameter usualy need 2 unit tests (false and true). But how do you create a parameter of type IEumerable. So many combinations are possible. A variant of the Permutations() method will help you to create almost all necessary combinations with just one extension method! [More]

When business objects needs to be stored in the database, they need to be validated. Creating a validation class make it easy to maintain en unit test the validations. Also implications are made easier. [More]

Caching LINQ results with ToList() has some disadvantages. Not using caching can have disadvantages to. There is a smart solution that does not cache more than needed. [More]

Except, Intersect and Union are doing a distict as thy are a set operation. This blog will help you if you don't want a distict. [More]

An easy way to ceate a tree and query the nodes of the tree. [More]

If you need to map codes or values, don't use the switch statement. An extension method makes it much easier. [More]

Convert an enum to a enum-string dictionary with text including spaces. [More]

The ChangeType method changes "any" type to T. This is handy if you need to convert something to T in a generic method. [More]