question on a boolean in switch in C#

[crainey69]

I'm working on a program for a programming class and from what I can tell, you can't use a boolean expression in a switch/case. I don't need a solution but, rather an answer if it can be done. I want to say.. for example:

case (age <= 12)
do this;
break;

I'm pushed into a Windows world but, run Redhat derivatives at home for the most part and run Windows in a virtual machines. I've googled everything I can think of.

Can anyone at least point me in the rigth direction to find a way to do it?

[SaGS]

You can have an expression in the ‘switch (…)’ itself, but the ‘case’s must be constants or constant expressions. To get what you describe in your example, use an ‘if’, eventually nested like ‘if (…) {…} else if (…) {…} … else {…}’.

[crainey69]

Originally Posted by SaGS

You can have an expression in the ‘switch (…)’ itself, but the ‘case’s must be constants or constant expressions. To get what you describe in your example, use an ‘if’, eventually nested like ‘if (…) {…} else if (…) {…} … else {…}’.

Thanks.. that's what I was finding. Our instructions to modify a program we had written using if elses were a lesson for us on that one. I completed it by using an if statement to set a status then used the status in the switch... totally inefficient but, does what he asked of us.

Apparently, there is a reason why that can't work that is beyond my grasp at the moment because I think it would be very useful.

Thanks

Cory

[Stabzs]

I know this is a really old post but I did come across it while looking for something similar, so I figured I'd provide an answer while i was here.

Because of the nature of the switch statement, a predetermined value must be given to a switcher variable BEFORE entering the switch. You can work around it like follows:

int caseSwitch = 0;
if (bool1)
{
caseSwitch = 1;
}
else if (bool2)
{
caseSwitch = 2;
}

switch (caseSwitch)
{
case 1:
Console.WriteLine("Case 1");
break;
case 2:
Console.WriteLine("Case 2");
break;
}

However, this is a bit ridiculous since you could then perform your logic in the if/else itself. So the short answer, you do NOT want to use switches in this instance in my opinion. Hopefully it helps anyone else who bumps into it.