C# WebDriver Chrome How to execute in silent mode?

[Christian LeMoussel]

When using Chome Selenium-Webdriver, it  will output diagnostic output when the servers are started :  Started ChromeDriver (v2.0) on port 9515

I do not want to see these messages, how can I suppress them?

I do 

ChromeOptions options = new ChromeOptions();
options.AddArgument("--silent");
IWebDriver Driver = new ChromeDriver(options);

But diagnostic output is not suppress?

[Jim Evans]

The ChromeOptions.AddArgument() method supplies command-line arguments for the Chrome *browser*, not the ChromeDriver *executable*. What you want is something more like the following:

ChromeOptions options = new ChromeOptions();

ChromeDriverService service = ChromeDriverService.CreateDefaultService();
service.SuppressInitialDiagnosticInformation = true;
IWebDriver driver = new ChromeDriver(service, options);

[Christian LeMoussel]

Jim, Thank's four your help. It's Ok., the Output  Started ChromeDriver (v2.0) on port 9515 is not display.

But output similar to below appears: 

[5468:8996:0404/150758:ERROR:textfield.h(156)] NOT IMPLEMENTED

Is it possible to remove this output ?

[Christian LeMoussel]

Microsoft Windows [version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. Tous droits réservés.

chromedriver.exe -h
Usage: chromedriver.exe [OPTIONS]

Options
  --port=PORT                     port to listen on
  --adb-port=PORT                 adb server port
  --log-path=FILE                 write server log to file instead of stderr, increases log level to INFO
  --verbose                       log verbosely
  --silent                        log nothing
  --url-base                      base URL path prefix for commands, e.g. wd/url

Is it possible to use this ChromeDriver options with C# ChromeWebDriver ?

[Krishnan Mahadevan]

Have you tried something like this : https://code.google.com/p/selenium/wiki/ChromeDriver#Running_the_server_in_a_child_process

Thanks & Regards
Krishnan Mahadevan

"All the desirable things in life are either illegal, expensive, fattening or in love with someone else!"
My Scribblings @ http://wakened-cognition.blogspot.com/

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[Jim Evans]

A quick perusal of the ChromeDriverService code[1] shows that setting the SupressInitialDiagnosticInformation property does exactly that, adding the "-silent" switch to the command line for chromedriver.exe. If using that switch is not enough to suppress the error logging of the executable, then you're out of luck. There's nothing the .NET bindings can do about it; they're already doing what you propose.

[1] http://selenium.googlecode.com/git/dotnet/src/webdriver/Chrome/ChromeDriverService.cs