Ok, so I'm trying to grasp the concept of WPF Commands. They seem pretty straightforward, until you try to forward the command to something that's not the XAML's code behind. I've seen several ways to do this with custom commands, but no straightforward explanation of how to do this with the built in WPF commands. Things like "Open", "save", "cut", etc. Ok, so I'm trying to grasp the concept of WPF C