Question

I added a text file to my solution in VS2010 and called it test.txt.

In the properties of the file I have set copy to output : always and the build action : content.

How can I open this file in my project now? So that if a user presses a button it will open up the text file.

I have tried several methods, such as File.open("test.txt") and System.Diagnostics.Process.Start(file path)) and nothing has worked.

Can anyone offer up some suggestions?

Answer 1

Since you are using copy to output the file is being placed in the same directory as your program therefore you can use:

System.Diagnostics.Process.Start("test.txt");

or based on this MSDN article:

string path = "test.txt";
using (FileStream fs = File.Open(path, FileMode.Open))
{
    byte[] b = new byte[1024];
    UTF8Encoding temp = new UTF8Encoding(true);

    while (fs.Read(b, 0, b.Length) > 0)
    {
        textBox1.Text += (temp.GetString(b));
    }
}