How to display DTR ON TIME and DTR OFF TIME in listbox in serial port communication?

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How to display DTR ON TIME and DTR OFF TIME in listbox in serial port communication that depends on user input, in C#?

like example
1. total time =20 minutes(i/p)Textbox
2. DTR ON=2000 milliseconds(i/p)Textbox
3. DTR OFF =5000 milliseconds (i/p)Textbox
4. start BUTTON
5. LISTBOX(Show the times with message enable/disable)

JUST SEND ME THE C# CODE plsssssssssssssssssss
hey use the thread concept like start sleep start for two threads

Posted 13-Feb-11 20:37pm

nitendrasingh

Updated 14-Feb-11 2:08am

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#realJSOP 14-Feb-11 8:20am

In response to the last sentence in your question - Hey! Just do it yourself. If you have a problem with the code, come back and ask a SPECIFIC question about what you're having a proble with.

nitendrasingh 14-Feb-11 23:32pm

hey i m fresher man thats y were asking about code just and new with windows so just give the code .

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OriginalGriff · Answer 1 · 2011-02-13T21:37:00

Since DTR is an output from the PC, I would keep a class level Stopwatch instance. Start it when you raise DTR (using the SerialPort.DtrEnable[^] property) and then read the time out in either a timer interrupt or when the user types. Stop it when you lower DTR.

Or have I misread your question?

#realJSOP · Answer 2 · 2011-02-14T01:43:00

To add those strings, herez da codez:

C#

listbox.Items.Add("DTR ON TIME");
listbox.Items.Add("DTR OFF TIME");

Seriously though, are you asking for the time at which DTR was turned on/off?

If so, that would go something like this:

C#

listbox.Items.Add(string.Format("{0} - DTR OFF", DateTime.Now.ToString("yyyyMMdd HH:mm:ss")));
listbox.Items.Add(string.Format("{0} - DTR ON", DateTime.Now.ToString("yyyyMMdd HH:mm:ss")));

Of course, you'd probably have to handle a custom event and invoke the proper delegate in order to add the appropriate text to the listbox, but you didn't ask for code for that, so I assume you know what you're doing.

How to display DTR ON TIME and DTR OFF TIME in listbox in serial port communication?

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