Reading a text file using C#

Hi,

I may be completely stupid but I can't make the code below work?! The text file TEST.TXT is a one liner (attached) and it is still not working!!!!! Please can somebody help me...... this was copied straight from MSDN...

Code:

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using (StreamReader sr = new StreamReader("c:\\TEST.TXT"))
{
String line;
while ((line = sr.ReadLine()) != null)
{
tb.AppendText(line + Environment.NewLine);
}
}

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I receive the error as follows:

Quote:

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Index and Length must refer to a location within the string.

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Does anybody know what I am doing wrong?

Thanks in advance,
DJ

is there more you are trying to do, because the code you posted works fine for me.

What I have...
textbox (txtCheck) with multiline property set to true.
and a button

Code:

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private void button1_Click(object sender, System.EventArgs e)
{
    StreamReader sr = new StreamReader("c:\\TEST.TXT");

    String line;
    while ((line = sr.ReadLine()) != null)
    {
        txtCheck.AppendText(line + Environment.NewLine);
    }
}

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I agree--the code looks good. I threw this into a console application and instead of using a control, threw the read text into a StringBuilder object:

Code:

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using System;
using System.Text;
using System.IO;

class test
{
  public static void Main()
  {
    StringBuilder tb = new StringBuilder();

    using (StreamReader sr = new StreamReader("c:\\TEST.TXT"))
    {
      String line;
      while ((line = sr.ReadLine()) != null)
      {
        tb.Append(line + Environment.NewLine);
      }
  }
  Console.WriteLine(tb);
}

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