Instance of a class

Question

Hi, Yesterday I was going through some code where I found this line: Cell[, ] Cells = null; I´ve never seen this way of making an instance from class before and thought mabey anyone here could explain what it does. The thing I dont understand is the "[, ]"-part in "Cell[, ]". The code I was going through is found at: http://www.c-sharpcorner.com/Code/2002/Sept/dfsmaze.asp (It´s in the zip file that follows, Maze.cs) I will highly appreciate any response given. Thanks.

Answer 1

OK... with a little more research I found my answer -------------------------------- using Microsoft.Win32; string myPath = ""; RegistryKey rk = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths\\SomeProg.exe", false); if(rk != null) { myPath = rk.GetValue("").ToString(); } ------------------------------------ In the code above I am getting the "Default" value which contains the programs executable path. The "false" parameter says that I want to open the key as read-only. I am not sure if the rk != null check is the right way to check that the key existed, but at first test this appears to work.