C# reading text into 2D array

C# reading text into 2D array

Jeffsg605

Member #13,048

July 2011

Sorry to post an XNA question here but I can't find the answer to this anywhere including XNA and C# forums.

Does anybody know how to read a text file into a 2D array in C#. I have this:

            int[,] map;
            FileStream fileStream = new FileStream(@"Map.txt", FileMode.Open);
            map = new int[5,5];
            for (int i = 0; i < 5; i++)
            {
                for (int j = 0; j < 5; j++)
                {
                    map[i,j] = // what goes here?
                }
            }

Any direction is much appreciated.
Thanks!

james_lohr

Member #1,947

February 2002

What are you trying to read from your file? - if it is simply an array of chars:

#SelectExpand
  1var width = 5;
  2var height = 5;
  3var map = new char[width,height];
  4var file = new StreamReader("Map.txt");
  5string line; 
  6var lineCount = 0;
  7while((line = file.ReadLine()) != null)
  8{
  9    if(lineCount<height){
 10        for(int i=0;i<width && i < line.Length){
 11            map[i,lineCount] = line[i]; 
 12        }
 13    }
 14    lineCount++;
 15}
 16
 17file.Close();

If it is an array of integers, then you will need to split it by some separator per line, and parse the individual integers.

bamccaig

Member #7,536

July 2006

Show us an example file.

--
I mean the best with what I say. It doesn't always sound that way.

Jeffsg605

Member #13,048

July 2011

Actually yeah, an array of chars was fine. I was focusing on reading ints and having a lot of trouble but chars did the job just fine. It was a lot of unnecessary frustration.

Thanks guys!