Is there any shortcut to select the current line in Visual Studio?

If you want to copy a line, simply place cursor somewhere in that line and hit CTRL+C

To cut an entire line CTRL+X

@Sean found what I was looking for:

To disable this default behavior remove the checkmark (or check to re-enable)

Apply cut or copy commands to blank lines when there is no selection

Accessed from the menu bar: Tools | Options | Text Editor | All languages

You can also enter copy into the options search box for quicker access

[Tested in VS2008, 2010, 2017]

Clicking the line 3 times does the trick

If you have ReSharper you could use

Ctrl + W - Extend Selection

Sidenote: You may have to use it multiple times depending on the context of your present text cursor position.

If you want to select a line or lines you can use the combination of ctrl + E then U. This combination also works for uncommenting a complete line or lines. This combination looks somewhat strange to work with, but it will get habituated very soon :)

You can also use Ctrl + X to cut an entire line. Similarly, you can use Ctrl + C to copy an entire line. As long as you don't have anything selected, these commands will work on the entire line.

If you click once on the row number the entire row will be selected.