Switch Multiple values in one case

Question

I have the following piece of code  but yet when I enter  12  I still get  You an old person   Isn t 9 - 15 the numbers 9 UNTIL 15  How else do I handle multiple values with one case     int age   Convert ToInt32 txtBoxAge Text      switch  age            case 1 - 8    MessageBox Show  You are only     age     years old n You must be kidding right  nPlease fill in your  real  age         break      case 9 - 15    MessageBox Show  You are only     age     years old n That s too young         break      case 16-100    MessageBox Show  You are     age     years old n Perfect         break      default    MessageBox Show  You an old person         break

User · Answer

There s no way to evaluate multiple values in one  case    You could either use an if statement  as others have suggested  or call a method which evaluates the range that the integer belongs to and returns a value which represents that range  such as  minor    adult   etc    then evaluate this returned value in the switch statement   Of course  you d probably still be using an if statement in the custom method

User · Answer

Separate the business rules for age from the actions e g   NB just typed  not checked   enum eAgerange   eChild  eYouth  eAdult  eAncient   eAgeRange ar  if age  lt   8  ar   eChild  else if age  lt   15  ar   eYouth  else if age  lt   100  ar   eAdult  else ar   eAncient  switch ar     case eChild           action  case eYouth          action  case eAdult          action  case eAncient          action  default  throw new NotImplementedException   Oops  ar ToString    not handled

User · Answer

You have to do something like   case 1  case 2  case 3    do stuff break

User · Answer

What about this   switch  true         case  age  gt   1  amp  amp  age  lt   8           MessageBox Show  You are only     age     years old n You must be kidding right  nPlease fill in your  real  age         break      case  age  gt   9  amp  amp  age  lt   15           MessageBox Show  You are only     age     years old n That s too young         break      case  age  gt   16  amp  amp  age  lt   100           MessageBox Show  You are     age     years old n Perfect         break      default          MessageBox Show  You an old person         break      Cheers

User · Answer

you can try this    switch  Valor                                case  Valor1   Valor2                        break

User · Answer

1 - 8   -7  9 - 15   -6  16 - 100   -84  You have   case -7              break  case -6              break  case -84              break    Either use   case 1  case 2   case 3    etc  or  perhaps more readable  use   if age  gt   1  amp  amp  age  lt   8               else if  age  gt   9  amp  amp  age  lt   15               else if  age  gt   16  amp  amp  age  lt   100               else                etc

User · Answer

You can t specify a range in the case statement  can do as follows   case 1  case 2  case 3  case 4  case 5  case 6  case 7  case 8     MessageBox Show  You are only     age     years old n You must be kidding right  nPlease fill in your  real  age     break   case 9  case 10  case 11  case 12  case 13  case 14  case 15     MessageBox Show  You are only     age     years old n That s too young        break               etc

User · Answer

In C  7 it s possible to use a when clause in a case statement   int age   12  switch  age       case int i when i  gt  1  amp  amp  i  lt   8      System Console WriteLine  You are only     age     years old  You must be kidding right  Please fill in your  real  age         break    case int i when i  gt  9  amp  amp  i  lt   15      System Console WriteLine  You are only     age     years old  That s too young         break    case int i when i  gt  16  amp  amp  i  lt   100      System Console WriteLine  You are     age     years old  Perfect         break    default      System Console WriteLine  You an old person         break

User · Answer

You can use ifelse instead but if you want to know how to use switch in this case here is an example   int age   Convert ToInt32 txtBoxAge Text    int flag  if age  gt   1  amp  amp  age  lt   8    flag   1    else if  age  gt   9  amp  amp  age  lt   15     flag   2    else if  age  gt   16  amp  amp  age  lt   100     flag   3    else    flag   4       switch  flag       case 1    MessageBox Show  You are only     age     years old n You must be kidding right  nPlease fill in your  real  age     break  case 2    MessageBox Show  You are only     age     years old n That s too young     break  case 3    MessageBox Show  You are     age     years old n Perfect     break  default    MessageBox Show  You an old person     break      hope that helps

[c#] Switch: Multiple values in one case?

Examples related to c#

Examples related to switch-statement

Examples related to case