Programmatically using a tab character in .NET

No.

The only reason that Environment.NewLine exists at all is cross-platform issues, which the tab character doesn't have. The newline character is \r on (pre-OS X) Mac, \n on Unix, and \r\n on Windows.

To allow .NET code to be portable across these platforms, the Environment.NewLine property was created, to return the newline character(s) used by the platform your code is running on.

The tab character is standard across all platforms, so there's no point in making a property to return it.

You can also use ControlChars.Tab.