How to check if an integer is already in a list

Question

i'm currently coding my own Sudoku in Windows Forms C# and I currently have Problems how to check if an integer is already in my list.

for (int i = 0; i < 9; i++)
        {
            List<int> list = new List<int>();
            for(int j = 0; j < 9; j++)
            {
                list.Add(sodukuPlayfield.grid[i, j]);
            }
        }

So I add all the number in a row to a list. But after that I wanna check if there is only one number from 1 - 9. How can I solve this?

Thank you.

check this http://stackoverflow.com/questions/3924268/find-if-an-integer-exists-in-a-list-of-integers — imsome1, Feb 16 '17 at 08:14
Here is a similar problem with a solution: http://stackoverflow.com/questions/17118212/c-sharp-list-only-contains?rq=1 — Mike, Feb 16 '17 at 08:15

score 0 · Answer 1 · answered Feb 16 '17 at 08:15

0

I'm not quite sure where you want to put the list checking, but this is how you check if a list contains a specific number:

List.Contains(number you're searching for)

Hope it helps!

answered Feb 16 '17 at 08:15

mindOfAi

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How to check if an integer is already in a list

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