Case with && Error!

[angelica]

hi,

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

 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";

[gep13]

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

[angelica]

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

[gep13]

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

[techgnome]

Try an additional set of parenthesis:

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

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

-tg

[gep13]

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

[Harsh Gupta]

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.