How to generate the .PRN file using c#.net using C#

Yeah got it but in the above PRn Code is 19 lines respectively, in the 2,3,9,10,11,12,13,14 and 16 line I coated text between "" (double quotes), what my actual requirement is within the "" the text will be change remaining code is static.
Below is my method....
private void button1_Click(object sender, EventArgs e)
{
string[] lines;
var list = new List<string>();
var fileStream = new FileStream(@"c:\srctxt1.txt", FileMode.Open, FileAccess.Read);
using (var streamReader = new StreamReader(fileStream, Encoding.UTF8))
{
string line="";
while ((line = streamReader.ReadLine()) != null)
{
list.Add(line);
}
}
lines = list.ToArray();

}