Select Case True

This syntax is often used instead of an If...ElseIf statement. Some people find it a little easier to read. For example:

Select Case True    Case testVariable < 0         Console.Write("You must supply a positive value.")    Case testVariable > 10         Console.Write("Please enter a number from 0-10.")    Case True         Call DoWork(testVariable)End Select

The answer is that yes, this still works in VB.NET. Just take care with when you use it, because it's not a "standard programming construct" and may be unfamiliar to people that have to maintain your code in the future.

I'm not sure how this construct offers any advantages over the following:

If testVariable < 0 Then     Console.Write("You must supply a positive value.")ElseIf testVariable > 10 Then     Console.Write("Please enter a number less than 10.")Else     Call DoWork(testVariable)End If

The above structure is short-circuiting, and I don't have to try to work out what it does as it's a standard construct.

Others have already answered that actual question, but I just want to chime in that I use this construct fairly frequently. I think it's often the most readable way of simultaneously testing two boolean conditions:

Dim A As BooleanDim B As Boolean''do stuff to set values of A and B'Select Case True  Case A And B    'something  Case A And Not B    'something else  Case Not A And B    'you get the picture  Case Else    '...End Select

I admit that part of why I find it easily readable is that I do use it, and that I do recall having to parse it the first time I saw it--but once successfully parsed, my reaction was "That's brilliant!"