Convert a string like "Alex" to a Guid with value: 1fe62611-cd3f-46e3-1e09-0ccb19e446e7. The same string always results in the same guid. [More]

A wrapper around Guid makes ordering fast in the database. This new version can also be used to get the creating date and time. Also SequentialGuids can be compared in C# like they are compared in SQL Server. [More]

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]

Random password generator with lowercase, uppercase, numbers and special characters. Each catagory can have a minimum number of characters. The minimum and maximum of the total length of the password is also a parameter of the method. Flexible enough for 99,9% of all situations. [More]

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

Command line parsing in C# is (Static Main(args []string) is very limited. That is why I created a ParameterParser class that results a list of Parameter objects that can be queried with Linq. With this list, it's easy to get almost any information about the parameters you want to know. The syntax is also very easy. No weird RexEg of other parser formats but just regular methods that are easy to use.
This will be the only comand line parser you ever need, or your money back ;-) [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]

Lots of people uses naviagtion systems like TomTom these days. As a C# deveoper you might want to know what the basic principles are behind these systems. This post shows you 3 fully functional classes behind the principles of a navigation system. [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]

What shoud I use for a Id in a SQL server database when using Entity Framework. Sequentional Guid (COMB) or an Int Identity? [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]

.Any() is much more effecient than .Count() > 0. Other methods like .IsSingle() or .IsMultiple() are also much more efficient than .Count() == 1 or .Count() > 1. [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]