Get the specific whole (0) dimension of a multidimensional array.

Questions & Answers
1

How can I possibly count only the specific whole row i want in a multidimensional array

I do the counting of my whole row like this

string[,] table = new string[104, 6];

IEnumerator Win_Log(){

GameObject p = Instantiate(prefab_gameobject) as GameObject;
p.transform.SetParent(pos_big_road);
p.transform.localScale = Vector3.one;

        img = (RawImage)p.GetComponent<RawImage>();
//COLUMN
        for(int col = 0; col < table.GetLength(0); col++)
        {
            int sum = 0;
            //ROW
            for (int row = 0; row < table.GetLength(1); row++)
            {
                if (table[col,row] != null)
                {
                    sum++;
                }
            }
            Debug.Log("table column: " + col + " has " + sum + " data");
        }
 }

The problem with this code is that it gets the whole multidimensional array . What i want is just to get the specific whole row then move to another row just like that.

2

You almost have it, you just need to remove iteration through all columns. Move the block in the outer for loop into a separate method, and then you can call it separately from anywhere. Like this:

private IEnumerator YourFunction () {
    for (int col = 0; col < table.GetLength(0); ++col) {
        int sum = CountRow(table, col);
        Debug.Log("table column: " + col + " has " + sum + " data");
        yield return null;
    }
}

// generic function, it will work on any 2D array (mostly because I don't know the type of your table variable :D )
public static int CountRow<T>(T[,] table, int col) {
    if (table == null || col < 0 || col >= table.GetLength(0)) {
        // handle error
        return -1;
    }

    // this is the same as the block of the outer for loop that you posted
    int sum = 0;
    for (int row = 0; row < table.GetLength(1); row++) {
        if (table[col, row] != null) { sum++; }
    }
    return sum;
}

Btw, here is a tutorial about 2D arrays in C#: C# 2D Array Examples - Dot Net Perls