Question

What is the mask for “percentage“, in a WinForms application (VB.net)?

Answer 1

Per the documentation here: http://msdn.microsoft.com/en-us/library/system.windows.forms.maskedtextbox.mask.aspx

\ Escape. Escapes a mask character,
turning it into a literal. “\\” is the
escape sequence for a backslash.

So the mask for a % sign is \%

Before posting, I made up a quick and dirty winforms app, tried it and it works.

Edit – added although this next item in the documentation makes it look like just a straight % sign should work without the backslash, so I tried it and it works as well.

All other characters Literals. All
non-mask elements will appear as
themselves within MaskedTextBox.
Literals always occupy a static
position in the mask at run time, and
cannot be moved or deleted by the
user.