Before Windows was created, the most common operating system that ran on IBM PC compatibles was DOS. DOS stands for Disk Operating System and was what you would use if you had started your computer ...

One of our biggest challenges as software developers is organizing our code so that it is easier to extend and maintain. The Command pattern helps us do that by encapsulating all the data required to ...

First, create a new C# WPF application. Next, create a folder named Commands. The undo system will contain two essential components: the CommandStateManager and the IUndoCommand interface. The ...