How to wait in a stream for a specific word in C#?

Question

C++ / C#

In the program, you need to "press" enter until the Username line appears.
After the appearance, start the authorization process

Answer 1

Apparently you are running a third-party console application from your own, then you need to redirect the standard output of this application and look for the desired word there:

var proc = new Process 
{
    StartInfo = new ProcessStartInfo
    {
        FileName = "program.exe",
        Arguments = "command line arguments to your executable",
        // Перенаправдяем поток вывода
        RedirectStandardOutput = true
    }
};

proc.Start();
// Читаем поступающие к поток данные
while (!proc.StandardOutput.EndOfStream)
{
    string line = proc.StandardOutput.ReadLine();
    if( line.IndexOf("Username", StringComparison.InvariantCultureIgnoreCase) )
    {
        // что-то там делаем
    }
}