I’m looking at inherited code and I found this in a vb.net windows form:
New System.Drawing.SizeF(6.0!, 13.0!)My question is, what is the significance of the
!(exclamation) operator here? Most of my searching for the exclamation operator ends up returning recordset format or the!gets ignored in the search and I get hundreds of unrelated items.
Answer
It’s to force the literal to be a Single.
Visual Basic supports Type Characters:
In addition to specifying a data type in a declaration statement, you can force the data type of some programming elements with a type character. The type character must immediately follow the element, with no intervening characters of any kind.
and:
Literals can also use the identifier type characters (%, &, @, !, #, $), as can variables, constants, and expressions. However, the literal type characters (S, I, L, D, F, R, C) can be used only with literals.
Attribution
Source : Link , Question Author : Kakoroat , Answer Author : Damien_The_Unbeliever
