With the introduction of LINQ the difference between writing code for accessing a lists of objects in memory and accessing a list of data in an external data source like SQL is vanishing. Combining a in memory with a external list in a single query was not yet possible. With the introduction of .NET Framework 4.0 this has changed.

I was working on some old code which created three DropDown controls with hours, minutes and seconds. I wanted to LINQify it using the LINQ Range method.