split string and convert into double values

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i read file in c# using streamreader.File.readallLine() method and every line contains three float values.How to extract every float value by splitting string?
My code is given below for split string but it not working proporly!

C#

try {
               
                var lines = File.ReadAllLines("InFIle.txt").Skip(1).ToList();
                for (int i = 0; i < lines.Count; i++)
                {
                    var line = lines[i];
                    var columns = line.Split('\n');
                }             

            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.Message);
            }

Received string in "-610\t -701\t -701" format,how to extract second and third column value?

Posted 21-Nov-13 0:52am

Venkat Raghvan

Updated 21-Nov-13 0:55am

v2

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Comments

Er Daljeet Singh 21-Nov-13 6:56am

Provide the data that you have in file.
you said that every line has three float values i just want to how the values a represented in the string.

Thomas ktg 21-Nov-13 7:06am

There is no floating points in the string received as you have mentioned. Show some data from the .txt file with the format.

Venkat Raghvan 21-Nov-13 7:39am

sorry guys mine mistake i was confused with data in file format.I want to convert that data in double.The data is given below:
-610 -701 -701
-607 -699 -699
-606 -697 -697
-604 -696 -696
-603 -696 -695
-603 -696 -695

ZurdoDev 21-Nov-13 7:46am

Just use the Split method on the String. Where are you stuck?

2 solutions

Solution 2

Assuming that you want numbers like "-610" to actually be converted to the Float numeric type:

C#

// required
using System.Collections.Generic;
using System.Linq;

// inside your Class, Form, etc.
private string floatStr = @"-610	-701	-701
-607	-699	-699
-606	-697	-697
-604	-696	-696
-603	-696	-695
-603	-696	-695";

// split on tab character
private char[] splitChar = new char[] {'\t'};

// to hold result of split
private string[] stringAry;

// to hold list of float result
private List<float> floatList;

private void stringsToFloat (object sender, EventArgs e)
{
    // get rid of newline and linefeed
    floatStr = floatStr.Replace('\r', '\t');
    floatStr = floatStr.Replace('\n', '\t');

    // split
    stringAry = floatStr.Split(splitChar, StringSplitOptions.RemoveEmptyEntries);

    // use Linq to convert to List<float>
    floatList = stringAry.Select(float.Parse).ToList();
}</float>

After this method is called, 'floatStr will contain a List of 18 float values.

Note that there's no validation here; what happens if there's an incorrect entry for one of the string to be converted to a float ?

Posted 21-Nov-13 6:28am

BillWoodruff

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

santhosh-padamatinti · Accepted Answer · 2013-11-21T01:45:00

You can get decimal values like below(If your string will always like above)

C#

try
           {

               var lines = File.ReadAllLines("InFIle.txt").Skip(1).ToList();
               for (int i = 0; i < lines.Count; i++)
               {
                   var line = lines[i];
                   var columns = line.Split('\n');
                   for (int columnsLoop = 0; columnsLoop < columns.Length; columnsLoop++)
                   {
                       string[] DecimalsArray = columns[columnsLoop].Split('\t');
                       decimal firstVal = Convert.ToDecimal(DecimalsArray[0]);
                       decimal secondVal = Convert.ToDecimal(DecimalsArray[1]);
                       decimal thirdVal = Convert.ToDecimal(DecimalsArray[2]);
                   }

               }

           }
           catch (Exception exc)
           {
               MessageBox.Show(exc.Message);
           }

split string and convert into double values

2 solutions

Solution 1

Solution 2

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split string and convert into double values

2 solutions

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Solution 2

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