Reading from a text file

[GeoOrtiz]

Hi All,

I'm having a bit of a problem reading from a text file and converting to a double. Here is my partial script:

#region Variables
private double textDouble = 0;
private string path = @"C:\NTFiles\textfile.txt";
private System.IO.StreamWriter sw;
#endregion

protected override void OnBarUpdate( )
{

if (Bars.FirstBarOfSession)

{

string[ ] tempText = File.ReadAllText (path);

foreach (string value in tempText)

{

textDouble = Convert.ToDouble(value);

}

File.WriteAllText (path, String.Empty);

}

}

protected override void OnTermination ( )
{

sw = File.AppendText (path);

sw.WriteLine (textDouble);

if (sw != null)

{

sw.Dispose ( );

sw = null;

}

}

Additional Info:
1. The text file will always have only one line
2. The script reads that one line, and deletes the text file contents
3. On termination, the script writes one value to the text file leaving the text file with just one line for the next time it runs.
4. As is, the content clearing and writing part work as they should. The problem is reading the text file and converting it to a double. The text file will have 1453.45 and the script will make the value of textDouble = 0.00.

All help is greatly appreciated.

[bltdavid]

This code has a significant error and should not even compile.

In your post, the definition of tempText looks mangled,

if (Bars.FirstBarOfSession)
string{ ] tempText = File.ReadAllText (path);

saying "string{ ]" is incorrect syntax, to my mind.

Can you attach your script?

[GeoOrtiz]

Sorry! That was a typo. The script is ok and it compiles.

I edited my original post to fix that problem.

[GeoOrtiz]

Hi All,

My apologies for posting this prematurely. There is actually nothing wrong with the partial script I posted. It is working as it should. The issue was that somewhere else in my script, that variable is reset to 0.00 and I didn't realize it until now.

Thank you!

[MicroTrends]

Hi All,

My apologies for posting this prematurely. There is actually nothing wrong with the partial script I posted. It is working as it should. The issue was that somewhere else in my script, that variable is reset to 0.00 and I didn't realize it until now.

Thank you!

looking at your code its not robust..
you should use this

https://msdn.microsoft.com/en-us/library/system.double.tryparse(v=vs.110).aspx