How Can I Wait for a Child Process to Finish in C#?

Ensuring Child Process Completion in C#

Many developers need a way to halt their program's execution until a child process finishes. This is especially important when using Process.Start() to launch external applications.

The solution is quite simple:

<code class="language-csharp">var process = Process.Start(...);
process.WaitForExit();</code>

The WaitForExit() method, as documented on MSDN, blocks the current thread until the associated process exits. An overloaded version allows you to specify a timeout, preventing indefinite waits.

This is crucial when dealing with multiple concurrent child processes, guaranteeing your main program doesn't continue until the specific process you're monitoring has completed its work.

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