Execute CMD command with buttons in C#

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Hello,
like the title say, I want to execute CMD command by pressing buttons in a Windows Form application.
I want to create an application which shutdown my computer after a specific time.

I´m new at Visual Studio and we only practiced a few command by creating some patterns in Forms. I also only used Forms because it`s easy to design the window where I want to press the buttons.

What I have tried:

I tried many commands, using the „using System.Diagnostics“ parameter and then the code:

ProcessStartInfo processtartinfo = new ProcessStartInfo();
processtartinfo.Arguments = "shutdown /s /t 3600";
processtartinfo.WindowStyle = ProcessWindowStyle.Hidden;
processtartinfo.FileName = "CMD.exe";
System.Diagnostics.Process.Start(processtartinfo);

But i wont work…
I also tried this code:

string strCmdText = "shutdown /s/t 3600";
System.Diagnostics.Process.Start("CMD.exe", strCmdText);

Which also didn´t work…

Posted 2-Mar-20 11:11am

Member 14761028

Updated 4-Mar-20 3:13am

v2

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Richard MacCutchan 3-Mar-20 3:48am

Change the options in ProcessStartInfo so you can see the actual running of the command, including any potential error messages.

Richard MacCutchan 4-Mar-20 9:41am

Have you implemented either of the suggestions provided in Solution 2 below?

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Dave Kreskowiak · Answer 1 · 2020-03-02T11:58:00

You're launching CMD, which if you open a CMD prompt and type "CMD /?", you'll see the the argument to launch a process is "/C" if the want the CMD window to close when the process it launched exits.

But, you don't even need to launch CMD at all. You can just launch "Shutdown.exe" and keep the Arguments as "/s /t 3600".

MadMyche · Answer 2 · 2020-03-02T11:38:00

Solution 1

You may want to read the documentation for the Shutdown command;
1. You may need to use the /f (force) parameter with the hidden window style
2. Your time delay is invalid, maximum delay is 600 seconds.

Reference: Shutdown | Microsoft Docs[^]

Posted 2-Mar-20 11:38am

MadMyche

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Member 14761028 3-Mar-20 3:40am

But when I manually execute the command in CMD or with a batchfile it works. There is no maximum delay, I also tried 3 hours (10800 sec.) which also worked.