How I can modify the code to make work all statements?

Question

I have the next code :

private void Install_Click(object sender, EventArgs e)
{

    string configfilename = path + \"config.ini\";
    string installerfilename          


        

Answer 1

Try this code.

string configfilename = path + "config.ini";
string installerfilename = path + "installer.ini";

var link = File.ReadLines(path + "config.ini").ToArray();
var lin = File.ReadLines(path + "installer.ini").ToArray();
IEnumerable<string> newInstaller = lin;
foreach (var txt in link)
 {

     if (txt.Contains("PLP="))
     {
        var PLPPath = txt.Split('=')[1];
        newInstaller = newInstaller.Select(line => Regex.Replace(line, @"fileInstallationKey=.*", "fileInstallationKey=" + PLPPath));                   
     }
     if (txt.Contains("Output="))
     {
         var outputPath = txt.Split('=')[1];
         newInstaller = newInstaller.Select(line => Regex.Replace(line, @"outlog=.*", "outlog=" + outputPath));  
     }
 }
newInstaller = newInstaller.Select(line => Regex.Replace(line, @"license=.*", "license=yes"));
newInstaller = newInstaller.Select(line => Regex.Replace(line, @"lmgr_files=.*", "lmgr_files=false"));
newInstaller = newInstaller.Select(line => Regex.Replace(line, @"lmgr_service=.*", "lmgr_service=true"));

string strWrite = string.Join(Environment.NewLine, newInstaller.ToArray());

File.WriteAllText(installerfilename,strWrite);

Answer 2

There is a mechanism to read/write to ini file. There is no need to re-invent the wheel here. Take a look at Reading/writing an INI file