accessing y coordinates from a list of string arrays

Question

So, I have a list which has an array of strings inside it, which (the arrays) are of different lengths.

foodmenu.menumethod();
var menugrid = foodmenu.menumethod();

// method for category lists

List<string> ingcategory = new List<string>();

for (int i = 0; i < menugrid.Count; i++)
{  
     ingcategory.Add(menugrid[i][]);       
}

return ingcategory;

I want to be able to access all the elements in the string array (which are the arrays inside the list) using a loop but a number of elements the string array contains are not the same for each item in the list.

what the current menugrid variable contains:

1 a b c d e f 
2 a b 
3 a b c d e f g h i j
4 a b c d e f h
5 a b c d
6 a b 
7 a

currently, it only goes to one to seven and I have to manually place the second coordinate in the place of Y due to me getting out of bound errors.

why would you prefer a `for` loop over `foreach`? is there any reason behind it? — Ousmane D., Apr 29 '17 at 13:14
I dont know how to use a foreach loop if they are better alternatives i would be happy — xxish, Apr 29 '17 at 13:15
_i have a list which as an array of strings inside_ show the type of that list / signature of foodmenu.menumethod — TaW, Apr 29 '17 at 13:15
the actual generation of the variable is a previous question i have asked http://stackoverflow.com/questions/43378834/streamreader-to-2d-array i used the first answer — xxish, Apr 29 '17 at 13:22

Ousmane D. · Answer 1 · 2017-04-29T13:33:32.240

use a foreach loop to access each string[] within the menugrid, that way you don't have to concern yourself with indexers.

foreach (string[] array in menugrid)
{
    // do something with the array           
}

or if you want to go another level deeper:

foreach (string[] array in menugrid)
{
    // do something with the array if necessary
    foreach (string item in array){
       // do something with the items within the array
    }            
}

score 0 · Answer 2 · answered Apr 29 '17 at 13:25

0

Here's how you can traverse through your list of array of strings:

foreach(var menu in menugrid)
{
    foreach(var item in menu)
    {
        // TODO: Do something with each item
        Console.Write(item);
    }
    Console.WriteLine("");
}

answered Apr 29 '17 at 13:25

degant

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accessing y coordinates from a list of string arrays

2 Answers2