topic Re: Reading data from a .txt file using C# in .NET Forum

Reading data from a .txt file using C#

ganderson — Tue, 26 Jan 2016 01:34:43 GMT

Hi Folks,

I have a txt file that has some data that I would like to use in a C# program that I am writing. Is there an example or code snippet that I can look at that shows how to open a file and parse the data. An example of the data is listed below:

1 Arm Hole Circumference Left: 19.761
1 Arm Hole Circumference Right: 21.122
1 Bicep Circumference Left: 12.851
1 Bicep Circumference Right: 13.365
1 Forearm Circumference Left: 10.44
1 Forearm Circumference Right: 10.189
1 Wrist Circumference Left: 7.1036
1 Wrist Circumference Right: 6.537
1 Arm Length Left: 22.749
1 Arm Length Right: 24.094
1 Arm Under Length Left: 16.361
1 Arm Under Length Right: 17.703

In all cases, the number at the end of the line is the one that I am interested in brining into the C# program.

Thanks in advance for your help.

~Vonnie

Re : Reading data from a .txt file using C#

_gile — Tue, 26 Jan 2016 06:38:46 GMT

Hi,

Maybe something like this (not tested)

var result = new List<double>();
using (var reader = new StreamReader(filename))
{
    string line;
    while ((line = reader.ReadLine()) != null)
    {
	var words = string.Split(' ');
	result.Add(double.Parse(words[words.Length - 1]));
    }
}
return result;

Re: Reading data from a .txt file using C#

_Tharwat — Tue, 26 Jan 2016 06:52:45 GMT

Maybe something like this would give you a push

        [CommandMethod("ReadTxt", CommandFlags.Modal)]
        public static void ReadTxtFileToCommandLine()
        {
            Document AcDoc = App.DocumentManager.MdiActiveDocument;
            Editor msg = AcDoc.Editor;
            try
            {
                OpenFileDialog ofd = new OpenFileDialog();
                if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                {
                    string FileName = ofd.FileName;
                    FileStream Fstream = new FileStream(FileName, FileMode.Open);
                    StreamReader read = new StreamReader(Fstream);
                    string st = read.ReadLine();
                    while (st != null)
                    {
                        msg.WriteMessage("\n" + (st.Substring(st.IndexOf(':') + 2)));
                        st = read.ReadLine();
                    }
                    Fstream.Dispose();
                }
            }
            catch (System.Exception err)
            {
                msg.WriteMessage(err.Message);
            }
        }

Re: Reading data from a .txt file using C#

ganderson — Tue, 26 Jan 2016 23:17:22 GMT

Thanks, I'll try this..

Re : Reading data from a .txt file using C#

ganderson — Tue, 26 Jan 2016 23:17:37 GMT

Thanks!

Re: Reading data from a .txt file using C#

BKSpurgeon — Wed, 27 Jan 2016 03:42:42 GMT

as for parsing the text file - a simple google search will yeild plenty of results because it has been done a billion times below. I just did one and came up with a good number of results and code too - freely available.

As for getting that last number - perhaps you will need to make use of the Regex class.

if you have trouble with you code please feel free to post again, but i think if you go in the general direction i've outlined above, you can't lose.