linq for 2 dimensional array with all

Question

[0,0,0]
[1,1,1]
[2,2,2]

I have the above 2 dimensional array.

I need to check for 3 things, first is to check if all the cells are filled just like above.

Second:

[0,0,0]
[1]
[]

For the above array, I need to check if all the cells are populated per row.

Third:

[0,]
[1,1]
[2,2,2]

I want to find if the first elements of first column are populated.

I can do it with foreach loops, or for loop. but i want to use All(predicate) with linq.

            foreach (var ticketValue in ticketValues)
            {
                firstRow = ticketValue.All(x => x == i);

                foreach (var value in ticketValue)
                {

                }
            }

What would be the best way to do this?

I'm not sure what you exactly want to do. Could you either list the expected outputs or write the foreach version of what you want to do? — Risky Martin
– Risky Martin, Commented Jul 16, 2012 at 4:43
Might be good to give some code examples, because your description is very vague. I gather that the first array is some sample data [not array declaration] but the second example is FUBAR? How can a row element NOT be populated from the description given [int, 2d array] it MUST be populated. — NPSF3000
– NPSF3000, Commented Jul 16, 2012 at 13:18
@NPSF3000 It looks like a jagged array, not a rectangular one. — Ani
– Ani, Commented Jul 16, 2012 at 13:45

Ally · Accepted Answer · 2012-07-16 17:32:47Z

I'm assuming you're setting up that 2D like this:

int?[][] myArrayA = new int?[][] { new int?[] {0,0,0}, new int?[] {1,1,1}, new int?[] {2,2,2} };
int?[][] myArrayB = new int?[][] { new int?[] {0,0,0}, new int?[] {1}, new int?[] {null} };
int?[][] myArrayC = new int?[][] { new int?[] {0,null}, new int?[] {1,1,1}, new int?[] {2,2,2} };

So, using Linq we do this:

bool FirstCheck(int?[][] theArray)
{
    int size = (from arrays in theArray select arrays.GetUpperBound(0)).Max();

    var check = from arrays in theArray
                where theArray.All(sub => sub.GetUpperBound(0) == size)
                select arrays;

    return size + 1 == check.Count<int?[]>();
}

bool SecondCheck(int?[][] theArray)
{
    int size = (from arrays in theArray select arrays.GetUpperBound(0)).Max();

    var check = from arrays in
                    (from subs in theArray
                     where theArray.All(sub => sub.All(value => value != null))
                     select subs)
                where arrays.GetUpperBound(0) == size
                select arrays;

    return size + 1 == check.Count<int?[]>();
}

bool ThirdCheck(int?[][] theArray)
{
   int size = (from arrays in theArray select arrays.GetUpperBound(0)).Max();

   var check = from arrays in theArray
               where theArray.All(array => array[0].HasValue)
               select arrays;

   return size + 1 == check.Count<int?[]>();
}

Hope that's what you were wanting...

Collectives™ on Stack Overflow

linq for 2 dimensional array with all

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related