How do I print rows of a 2d who contain only positive integers?

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C#

Hey there! I'm really close ,but I just can't seem to wrap my head around the last step.
So what I want is to have 2d matrix and print only the rows that have ALL positive ints.

Right now its my code is just taking out the ints that are either 0 or negative,but I need to remove the entire line if said line contains a 0 or negative.

This is what I'm getting right now
Input:

1 2 6 4
1 5 0 9

Output:

1 2 6 4
1 5

So basically it should not have printed the 2nd row b/c it had a non positive integer

What am I doing wrong?

I appreciate you taking the time to give this a look over!

static void Main(string[] args)
        {
            List<string> L = readAllLines();
            int[,] m = convertListToIntMatrix(L);

            int Rows = m.GetLength(0);
            int Cols = m.GetLength(1);

            for (int r = 0; r < Rows; r++)
            {
                for (int c = 0; c < Cols; c++)
                {

                    if (m[r, c] <= 0)
                    {

                        break;

                    }
                    else Console.Write("{0} ", m[r, c]);
                }
                Console.WriteLine();

            }