Reading output from console through asp.net

I am using this code to pass two numbers as input to an .exe of a C program file through asp.net and after that trying to read the output from console. I am having problem to read any output from the console. My asp.net code is.

Code:

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string returnvalue;

Process p = new Process();

p.StartInfo.CreateNoWindow = true;
p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
p.StartInfo.FileName = ("C:\\Users\\...\\noname01.exe");
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardInput = true;
p.Start();
Thread.Sleep(500);
SendKeys.SendWait("1");
Thread.Sleep(500);
SendKeys.SendWait("~");
Thread.Sleep(500);
SendKeys.SendWait("2");
Thread.Sleep(500);
SendKeys.SendWait("~");
Thread.Sleep(500);

StreamReader sr = p.StandardOutput;

returnvalue = sr.ReadToEnd();

System.IO.StreamWriter file = new System.IO.StreamWriter("C:\\...\\StudentOutput.txt");
file.WriteLine(returnvalue);

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My C code to which am passing inputs is.

Code:

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#include<stdio.h>

    int main()
    {
    int a, b, c;

    printf("Enter two numbers to add\n");
    scanf("%d%d",&a,&b);

    c = a + b;

    printf("Sum of entered numbers = %d\n",c);

    return 0;
    }

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I am having problem to read any output from the console.

Perhaps it's a permissions issue. Or it might be the account asp.net runs under can't access the console. Try piping the output of the exe to a file and then read the file.

Quote:

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I am having problem to read any output from the console.

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What problems are you having?

I don't see any error checking in your asp.net code?

Quote:

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Originally Posted by 2kaud

I don't see any error checking in your asp.net code?

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Whenever i run my program it opens the .exe file of the C program and pass the in put through sendkeys
now i want to read all of that output from the console of the C program but its not working

Quote:

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Originally Posted by hussainahmad007

Whenever i run my program it opens the .exe file of the C program and pass the in put through sendkeys
now i want to read all of that output from the console of the C program but its not working

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In what way is it not working? Do you get any errors reported?

Sorry to say, but using send keys with a console app isn't the most reliable approach even under the best circumstances.

That being said, did you read my first response? Did that make sense?