c# beginner using stream reader to read in a txt file - streamreader

Question

i'm having trouble reading in a text file which contains 9 sets of three integer values separated by commas. This is what i have done so far, but how would i be able to read through the data going down row one to get a max value?
very stuck with a program the data text file looks like
21,7,11
20,10,12
17,7,18
these represent temperature, height and carbon%
i have read in the file as so
{
string s;
System.IO.StreamReader inputFile = new System.IO.StreamReader(DataFile);
s = inputFile.ReadLine();
int noDataLines = int.Parse(s);
double[,] data = new double[noDataLines, 3];
string[] ss;
is this right if the data is stored in the debug folder as a .txt file?
from here how would i go about getting a max temp(ie only reading the first vertical column of data)?

Answer 1

We can simply use mixture of System.IO File.ReadLines() method and LINQ .ToList() in order to read all text lines to List<string>. At this point we can just iterate through the collection parsing double values from text lines :
List<string> lines = File.ReadLines("filepath").ToList();
List<int[]> values = new List<int[]>();
int[] temp = new int[3];
for (int i = 0; i < lines.Count; i++)
{
string[] strValues = lines[i].Split(',');
for (int i2 = 0; i2 < strValues.Length; i2++)
temp[i2] = Convert.ToInt32(strValues[i2]);
values.Add(temp.ToArray());
}
Or we can use LINQ :
List<string> lines = File.ReadLines("filepath").ToList();
List<int[]> values = new List<int[]>();
int[] temp = new int[3];
for (int i = 0; i < lines.Count; i++)
values.Add(lines[i].Split(',')
.Select(l => Convert.ToInt32(l)).ToArray());