Case with && Error!

hi,

Im getting an error on the case lines in Red:
========================================
Cannot implicitly convert type 'bool' to 'int'
========================================
Any help please. Thanks

Code:

---

switch (total)
            {    case (total < 50):                   
                  grade = "FAIL";

                case (total >= 50 && total < 70):               
                  grade = "PASS";

                  case (total > 70 && total < 80):
                    grade = "MERIT";

                  case  (total >= 80 && total < 90):       
                  grade = "DISTINCTION";

---

Hello,

I do not believe that this is possible in the C# Specification.

http://msdn.microsoft.com/en-us/libr...7t(VS.71).aspx

I believe you will have to do this using If's.

Hope this helps!!

Gary

Still get the same error even with an if ... else if statements. So it seems something is wrong in the logical expression.

Hey,

I certainly wouldn't call it weak.

This seems to be possible in VB:

http://www.java2s.com/Tutorial/VB/00...tegervalue.htm

But not so in C#. I am sure there is a very good reason to this, but I don't know what that reason is.

Gary

Try an additional set of parenthesis:

Code:

---

((total >= 50) && (total < 70)):

---

Make sure you know exactly what order things are processing in.

-tg

Hey,

Techgnome, I don't think that is going to help.

When I attempted to convert the code in the link that i posted I got the following error:

"Case labels with binary operators are unsupported"

Therefore, I simply think that this case statement functionality is not supported in the C# language specification.

Gary

Try turning on Option Strict in VB, then even it will expect Constant expressions in CASE and Ranged integral values will throw error.

@OP, you are pretty much out of luck here. You have to use IF-THEN-ELSEIF conditions in your case.