ReadLine TextBox

Question

I want a RichTextBox to behave like a console window and read a line. This is my first try at threads so it didn't work and skips the method. Should I not use a thread? bool READING = false; string READ_str; public string RL() { READ_str = ; READING = true; ThreadStart w1 = new ThreadStart(Loop_th); Thread t1 = new Thread(w1); t1.Start(); return READ_str; } public void Loop_th() { while (READING) { Debug.WriteLine(READING:  + READING.ToString()); if (!READING) break; } } private void m_textbox_KeyDown(object sender KeyEventArgs e) { if (READING) { string read_ch = e.KeyValue.ToString(); c.w(Read:  + read_ch +   + e.KeyCode.ToString()); if (e.KeyCode == Keys.Enter) { c.w(Pressed enter); READING = false; } else { READ_str += read_ch; c.w(Readstr:  + READ_str); } } }

onez · Answer

Is some aspect of what I'm trying to do not possible? Any help at all would be very appreciated.

onez · Answer

I can get the ReadLineFunct() to work and accumulate keys but how do I stay in the w1 thread until w1 is done? It skips before the ManualResetEvent gets called. Please help: private void button3_Click(object sender EventArgs e) { ReadLine(); } public string ReadLine() { Thread w1 = new Thread(new ThreadStart(ReadLineFunct)); w1.Start(); Debug.WriteLine(after thread start in ReadLine() ); // returns too early return R_str; // field } void ReadLineFunct() { mre = new ManualResetEvent(false); B_reading = true; mre.WaitOne(); Debug.WriteLine(gotten in RL: + R_str); } key down event of enter.... mre.Set();

alobiuc · Answer

Nevermind the special keys remark. Indeed KeyCode and KeyValue are used properly. Sorry I was in quite a hurry.

alobiuc · Answer

As far as I can see (I don't have time right now to run your code) your method is not actually skipped. But why are you calling the RL() function twice (first from the Program class then from C class)? Something else Loop_th() will keep writing True to the listener until Enter is pressed (which can occur after a long period of time) consuming CPU time for nothing. Furthermore think what happens when the user presses an arrow key or CAPS_LOCK for example (the READ_str would look like: aUPLEFTbcCapital etc.). However a TextBox which would have a console's functionality is easier to implement than you're trying to do.

onez · Answer

The RL() method or writeline method is in the form itself. A static constructor of the form is used (this used to be a console app). There is probably a better way to do this... class Program { public static MainForm MF; // set in form loading //method MF.WL(Enter input:  ); MF.RL(); } public class C { public static string RL() { string r = Program.MF.RL(); return r; } }

alobiuc · Answer

I don't see where are you calling the RL() function in order to start the t1 thread. And by the way you could write only one line to make a new thread: Thread t1=new Thread(new ThreadStart(Loop_th)); A. L.