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How to invoke a console program in .NET programming?


james wei 2024-09-29 17:33:06

In .NET programming, if you want to invoke a console program and output its parameters in real-time, you can achieve this by using the System.Diagnostics.Process class and redirecting the standard output stream. Here's how you can do it:

  1. Create a new instance of ProcessStartInfo and set the FileName property to the path of the console program you want to invoke.

  2. If the console program requires any arguments, set the Arguments property of ProcessStartInfo to those arguments.

  3. Set the UseShellExecute property of ProcessStartInfo to false to ensure that you can redirect the output.

  4. Set the RedirectStandardOutput property of ProcessStartInfo to true to redirect the standard output stream of the console program.

  5. Create a new instance of the Process class and assign the ProcessStartInfo object to its StartInfo property.

  6. Start the process by calling the Start method of the Process object.

  7. To read the output of the console program in real-time, use a StreamReader to read from the StandardOutput stream of the Process object.

  8. In a loop, read each line of output from the StreamReader using the ReadLine method and write it to the console using Console.WriteLine.

  9. After reading all the output, wait for the console program to exit by calling the WaitForExit method of the Process object.

Here's a sample code snippet that demonstrates these steps:

using System;
using System.Diagnostics;
using System.IO;
​
class Program
{
    static void Main()
    {
        ProcessStartInfo startInfo = new ProcessStartInfo
        {
            FileName = "path_to_your_console_program.exe",
            Arguments = "your_arguments",
            UseShellExecute = false,
            RedirectStandardOutput = true
        };
​
        using (Process process = new Process { StartInfo = startInfo })
        {
            process.Start();
​
            using (StreamReader reader = process.StandardOutput)
            {
                string line;
                while ((line = reader.ReadLine()) != null)
                {
                    Console.WriteLine(line);
                }
            }
​
            process.WaitForExit();
        }
    }
}

In this code, replace "path_to_your_console_program.exe" with the actual path to your console program and "your_arguments" with the arguments you want to pass to the program. The code will start the console program, read its output in real-time, and write it to the console.



How to invoke a console program in C++ on Windows?
How to invoke a console program in JAVA?

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