Enum/Array Syntax Error?

[Guest]

Hello,

Thanks for reviewing my question. I would like to know why I am getting a
syntax error on the following:

enum WD_INDICE {DAY,WEEK,MONTH,YEAR};
int[] wndCount = new int [ WD_INDICE] {0, 0, 0, 0};

I would like to index into the array using the enums like wndCount[DAY].

Thanks for the help.
Peter

 

[Stoitcho Goutsev \(100\) [C# MVP]]

enum WD_INDICE {DAY,WEEK,MONTH,YEAR};

int[] wndCount = new int [ WD_INDICE] {0, 0, 0, 0};

I would like to index into the array using the enums like wndCount[DAY].

You can't do that. Firstly array indices are integers only. Secondly when
creating an array you need to specify numbers. What is WD_INDICE? It is not
a number.

what you can do is

int[] wndCount = new int [Enum.GetValues(typeof(WD_INDICE)).Length];

Since you want to initialize the array you don't have to specify number of
elements

int[] wndCount = new int [] {0, 0, 0, 0}; // the array will have 4 elements


wndCount[(int)WD_INDICE.YEAR] = 4;

Pay attention on the fact that you can't use enum values directly to index
the array. You have to cast them to int.

 

[Wes]

Hello Peter,

If you are only using that enum for that exact purpose why don't you just create a struct like:
struct WD
{
int Day;
int Week;
int Month;
int Year;
}

// And so you can acces them directly and even have intellisense.
WD wndCount;
wndCount.Day ...

HTH
Wes Haggard
http://weblogs.asp.net/whaggard/