Question

I’ve got a two-dimensional array like this:

double[,] results = new double[100,100];

I’d like to pass every one dimensional part of the array to a function as a paremeter.

for (int i = 0; i < 100; i++){
     cool_function (results[???], 10);
} 

How do I do this in C#?

Answer 1

source
Jagged arrays are arrays of arrays. The elements of a jagged array are other arrays.

Declaring Jagged Arrays

Declaration of a jagged array involves two brackets. For example, the following code snippet declares a jagged array that has three items of an array.

int[][] intJaggedArray = new int[3][];

The following code snippet declares a jagged array that has two items of an array.

string[][] stringJaggedArray = new string[2][];

Initializing Jagged Arrays

Before a jagged array can be used, its items must be initialized. The following code snippet initializes a jagged array; the first item with an array of integers that has two integers, second item with an array of integers that has 4 integers, and a third item with an array of integers that has 6 integers.

// Initializing jagged arrays
intJaggedArray[0] = new int[2];
intJaggedArray[1] = new int[4];
intJaggedArray[2] = new int[6];

We can also initialize a jagged array’s items by providing the values of the array’s items. The following code snippet initializes item an array’s items directly during the declaration.

// Initializing jagged arrays
intJaggedArray[0] = new int[2]{2, 12};
intJaggedArray[1] = new int[4]{4, 14, 24, 34};
intJaggedArray[2] = new int[6] {6, 16, 26, 36, 46, 56 };