Process each line separately in selected text

Question

I'm trying to select a set of lines and process each line separately in a text document using c# language. How can i get separate lines to process? I tried these codes and got struck. Can anyone please help me with this?

EnvDTE.DTE dte = MyPackage.MyPackagePackage.GetGlobalService(typeof(EnvDTE.DTE)) as EnvDTE.DTE;
EnvDTE.TextSelection text = (dte.ActiveDocument.Selection as EnvDTE.TextSelection);

Answer 1

If you are reading from a text file this code will help you:

string fileToRead = "D:\\temp.txt";    // Temp.txt is the file to read

if (File.Exists(fileToRead))
{
    StreamReader reader = new StreamReader(fileToRead);
    do
    {
         textBox1.Text += reader.ReadLine() + "\r\n";    // Read each line and pass it to the TextBox1

    } while (reader.Peek() != -1);
    reader.Close(); // Close the file 
}