This past week a very old (last time I did work for him was in 2007) client of mine contacted me because their program suddenly started exhibiting a problem. It seems that if a user enters a date anytime in 2015, the program displays an error message indicating that they need to enter a date greater than today and less than two years from today.… Read the rest
A couple of weeks ago, we discussed Value types and Reference types where we said that a reference type points to the value it represents and a value type is the value it represents.
This has implications when we work with the assignment operator because when you assign a reference type and change the content of what it is pointing to, both variables get changed because they are both pointing to the same location in memory. If you do this with a value type, only the one you change sees the change because you are working with a copy.… Read the rest
Many people starting out with Unit testing get stuck when it comes to using their tools with the Visual Studio environment. If it isn’t built in, how do we make it work with Visual Studio? In this article I want to explore the basics of creating a unit test for NUnit and getting it running from Visual Studio.… Read the rest
It is amazing to me how few programmers understand the fundamentals of how variables work. Not just in .NET or C# specifically, but in every language they work in. It amazes me for two reasons. First, I don’t think I could program if I didn’t understand what was physically happening as a result of the code I was writing. Not knowing how the variables relate to the memory that they use would be, to me, a major limitation. But it also amazes me because I don’t think anyone can program intelligently until they do know what is happening.… Read the rest
So, today I had the task of removing the leaves from my yard, which gave me a lot of time to think because it is a pretty solitary job, even if you have people helping you, because much of the time I was using a leaf blower. It is pretty hard to hold any kind of conversation when you are using a leaf blower.… Read the rest