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File sharing problem with another program

Hello I have file "sign.car" that is being chared by another program.

that's how it works:

I lauch the c# code. And i excute the other program also.

They both depend on this file. And it contains 1 or 0.

If sign = 1. The the program will use it.

Else i will use it.

That's how i wrote it. BUT it is TIME CONSUMING!!!!!!!!!!!

i have to wait 2 SECONDS it is really slowing my work.

List<Classification> data = new List<Classification>();
        while (signe == 1)
        {

            if (stopW.ElapsedMilliseconds > 2000)
            {
                StreamReader reader1 = new StreamReader("signe.car");
                line = reader1.ReadLine();
                signe = Int32.Parse(line);
                reader1.Close();
            }
            else
            {
                stopW.Start();
            }
            if (signe == 0)
            {
                string path = "resultat.car";
                string[] lines = File.ReadAllLines(path);
                string[,] grid = new string[obs.GetLength(0), 2];

                for (int i = 0; i < lines.Length; i++)
                {
                    string[] fields = lines[i].Split('\t');
                    data.Add(new Classification(Int32.Parse(fields[0]), Int32.Parse(fields[1])));

                }//End For

            }//END IF

        }//End while

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rawinnlnx9

I'm not sure what you are asking if you don't want to wait 2 seconds then take that out. If you are writing the file, closing the handle, flushing the handle, etc... and then opening it with a new instance/process/exe/ect... and that 2 seconds is needed for all of that to happen you are stuck. Why not just save the file name with a 1 or 0 in the name. Then you just read the name with one process and you open it with the other. Reading a filename into a string is fast. No buffers and such...

dadadude

ASKER

actually i tried Try and catch didn't work.
And 2 seconds does count if i have a 100*1000 Loop.
i don't know if there is a way to do it without even affecting the other program. Cos the other one is also throwing an exception.

dadadude

ASKER

i think that i am stuck cos the other one don't have an exception. and the only solution to know if it used by another process is to try and open it.

dadadude

ASKER

what happens if i find an answer to my question?
what should i do?

ASKER CERTIFIED SOLUTION

dadadude

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dadadude

ASKER

oh thank u for the A. Oh u are welcome lol . silly forum sick of it