Enumered lists

[Samuel Manoel De Souza]

There is some function to transform an element of an enumerated list in a list or array of strings. For example, when we make an indicator and put an ENUM_APPLIED_PRICE input the program will automatically display a price list in the input parameters. How can I do the same with a button or list view?
I know I can do some functions for this. But if you need to do lots of lists this can be cumbersome.

[Samuel Manoel De Souza]

I find the function EnumToString.

Now how to obtain the size of an enum list an make a loop to translate all elements of an same list?

[William Roeder]

1. string as_string(ENUM_APPLIED_PRICE p, int len=0){
      string price_XXX = EnumToString(p);
      return StringSubstr(price_XXX, 6, len);
   }
   string            as_string(ENUM_TIMEFRAMES period){
      if(period == PERIOD_CURRENT)  period   = (ENUM_TIMEFRAMES) _Period;
      string   period_xxx  = EnumToString(period);                // PERIOD_XXX
      return StringSubstr(period_xxx, 7);                         // XXX
   }
   string   as_string(ENUM_MA_METHOD average){
      string ave_xxx = EnumToString(average);                        // MODE_XXX
      return StringSubstr(ave_xxx, 5);                               // XXX
   }
   

2. If the values are contiguous (0,1,2, …) you can use

   enum Test {A,B,C};
   template<typename T> T end(T value=0){
      for(;;++value){
         string asT=EnumToString(value);  // A, B, C, Test::3
         if(StringFind(asT, "::") > 0)   return value;
      }
      return WRONG_VALUE;
   }
   
   Test t=end<Test>();
   Print( EnumToString(--t) );   // C
   

   I wouldn't bother, you know the enumeration. Just #define Test_FIRST A and #define Test_LAST C and be done. For(Test i=Test_FIRST; i <=Test_Last; ++i) …

3. Non-contiguous would be like Timeframes (1,5,15,30 …) You'll have to roll your own

   ENUM_TIMEFRAMES   larger(ENUM_TIMEFRAMES tf){
      static ENUM_TIMEFRAMES  period[]={   PERIOD_M1,  PERIOD_M5,  PERIOD_M15,
                   PERIOD_M30, PERIOD_H1,  PERIOD_H4,  PERIOD_D1,  PERIOD_W1,  PERIOD_MN1, PERIOD_MN1};
      for(int i=0; ;++i) if(period[i] == tf) return period[i+1];
   }
   

   
   

[Samuel Manoel De Souza]

whroeder1:

2. If the values are contiguous (0,1,2, …) you can useI wouldn't bother, you know the enumeration. Just #define Test_FIRST A and #define Test_LAST C and be done. For(Test i=Test_FIRST; i <=Test_Last; ++i) …

3. Non-contiguous would be like Timeframes (1,5,15,30 …) You'll have to roll your own
   

Thank you for help.