Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 3576
  • Last Modified:

Reading a 2d array from a text file using c#

I have a two dimensional array contained within a text file, which has undefined dimensions in terms of rows and columns.
example
12.333 322.222 22.23
344.52 22.3 2334.2
333.22 3342.3 33.4
I wish to read in the matrix contained in the text file into a two-dimensional array in c#. How is this achieved and implemented?
0
gxp071
Asked:
gxp071
  • 2
1 Solution
 
Razzie_Commented:
First read read through the entire file and count the number of lines. Also count the number of columns (seperated by a space). This code will work:

----------------------------------------------------------------------

String[,] array2D;

int numberOfLines = 0, numberOfColumns = 0;
string line;
System.IO.StreamReader sr = new System.IO.StreamReader(filename);
                  
while((line = sr.ReadLine()) != null)
{
      numberOfColumns = line.Split(' ').Length;
      numberOfLines++;
}
sr.Close();

array2D = new String[numberOfLines,numberOfColumns];
numberOfLines = 0;
                  
sr = new System.IO.StreamReader(filename);
while((line = sr.ReadLine()) != null)
{
      String[] tempArray = line.Split(' ');
      for(int i=0;i<tempArray.Length;++i)
      {
            array2D[numberOfLines, i] = tempArray[i];
      }
      numberOfLines++;
}
------------------------------------------------------------------------------------

HTH,

Razzie
0
 
gxp071Author Commented:
Thanks for the help..!!
0
 
Razzie_Commented:
No problem, glad I could help.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now