Windows Phone Developers

Sunday, May 6, 2012

Insert CSV File to Array using C#

Read Text File to Array C#/ Insert CSV File to Array using C# / C# Array from Text/CSV Files
ReadAllLines method can be used to read the contents of a CSV file to array. Each line of the text file will become the elements of the array
public void ReadFile2Array()
{
String[] FileContent = File.ReadAllLines(@"C:\Temp\vba.csv");
int LineNo = 0;
foreach (string Line in FileContent)
{
LineNo +=1;
Console.WriteLine("Line " + LineNo.ToString() + " " + Line);
}
}
ReadAllLines method opens a text file, reads all lines of the file into a string array, and then closes the file.
The input file is shown below



The output will be like


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2 comments:

  1. Awful code, this is a better approach:

    public void ReadFile2Array()
    {
    String[] FileContent = File.ReadAllLines(@"C:\Temp\vba.csv");
    for (int i = 0; i < FileContent.Length; i++)
    Console.WriteLine(String.Format("Line {0} {1}", i+1, FileContent[i]);
    }

    pls don't teach people who are willing to learn such badly optimized and unpractical code.

    ReplyDelete
    Replies
    1. I have a similar problem, but I am still a beginner. Can you help me out?

      Suppose I have a text file with data like below, I want to read first row and store the elements in one array. Read the second row and store in second array and so on. I will be making some manipulations on the array later on. Can you help me to do this in C#. (I'm a beginner)

      Input text file:

      5,7,3,6,9,8,3,5,7

      5,6,8,3,4,5

      6,4,3,2,65,8,6,3,3,5,7,4

      4,5,6,78,9,4,2,5,6

      I would also like to have a loop to go through the arrays to do some manipulations on the elements.

      The Code I am trying out is:

      static void Main(string[] args)
      {
      TextReader tr = new StreamReader("Data.txt");
      // write a line of text to the file
      string word = tr.ReadLine();
      //now split this line into words
      string[] val = word.Split(new Char[] { ',' });
      }

      Delete

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