title: Cannot display text while process is running c# WPF
body: <p>I have an application which programs firmware to an ST-LINK using ST-LINK_CLI.exe.</p>
  
  <p>The user chooses a firmware, presses start and the process begins. However it takes quite a while for the board to program and the user may think that the program has crashed. I want a text block to display 'Board Programming..." so that they know it is working.</p>
  
  <p>However, at the moment the code doesn't display the text until it has already been programmed and I'm not sure why. The following is my code on the click start button event:</p>
  
  <pre><code> ProcessStartInfo start = new ProcessStartInfo(); //new process start info
          start.FileName = STPath; //set file name
          start.Arguments = "-C -ME -p " + firmwareLocation + " -v -Run"; //set arguments
          start.UseShellExecute = false; //set shell execute (need this to redirect output)
          start.RedirectStandardOutput = true; //redirect output
          start.RedirectStandardInput = true; //redirect input
          start.WindowStyle = ProcessWindowStyle.Hidden; //hide window
          start.CreateNoWindow = true; //create no window
  
  
          using (Process process = Process.Start(start)) //create process
          {
  
              try
              {
  
                  while (process.HasExited == false) //while open
                  {
                      process.StandardInput.WriteLine(); //send enter key
                      programmingTextBlock.Text = "Board Programming...";
                  }
  
                  using (StreamReader reader = process.StandardOutput) //create stream reader
                  {
                      result = reader.ReadToEnd(); //read till end of process
                      File.WriteAllText("File.txt", result); //write to file
                  }
  
              }
              catch { } //so doesn't blow up
              finally
              {
                  int code = process.ExitCode; //get exit code
                  codee = code.ToString(); //set code to string
                  File.WriteAllText("Code.txt", codee); //save code
                }
  </code></pre>
  
  <p>Is there anyway to get the text to display before the process begins to run or whilst the process is running?</p>
  
  <p>Thanks
  Lucy</p>