C# string to float?

Question

I have this bit of code here:

int i = 0;

        StreamReader re = File.OpenText("TextFile1.txt");
        string input = null;

        while ((input = re.ReadLine()) != null)
        {
            string[] sites = input.Split(' ');
            for (int j = 0; j < sites.Length; j++)
            {
                MyArray[i, j] = Convert.ToInt32(sites[j]);
            }
            i++;
        }


     for (int a = 0; a < 5; a++)
     {
            for (int j = 0; j < 5; j++)
            {
                Console.Write(MyArray[a, j] + " ");

            }
            Console.WriteLine();
     }

My problem is this line of code

MyArray[i, j] = Convert.ToInt32(sites[j]);

Its getting converted to an int, how do I convert it to a float?

float[,] MyArray = new float[5, 5]; MyArray[i, j] = Convert.ToSingle(sites[j]); — Bramble, Dec 04 '09 at 02:37

score 33 · Answer 1 · answered Dec 04 '09 at 02:35

33

Try float.Parse(string) or Double.Parse(string)

answered Dec 04 '09 at 02:35

Matt

24,106
61
180
291

score 9 · Accepted Answer · answered Dec 04 '09 at 02:36

9

MyArray[i, j] = Convert.ToSingle(sites[j]);

answered Dec 04 '09 at 02:36

SoapBox

19,716
3
46
86

score 5 · Answer 3 · edited May 23 '17 at 12:17

5

Convert.ToSingle method or whole bunch of others.

EDIT:
Here's an related article: Double.TryParse or Double.Convert - what is faster and more safe? of interest in SO.

edited May 23 '17 at 12:17

Community

1
1

answered Dec 04 '09 at 02:38

o.k.w

24,261
6
60
62

With Convert.ToDouble, I was expecting there to be a Convert.ToFloat. This makes sense though. – WhiteHotLoveTiger Dec 22 '16 at 20:18

C# string to float?

3 Answers3