This article shows you the type declaration characters and corresponding
data types. A Type Declaration Character is a character appended to a
variable name indicating the variable's data type. For example, the
variable name MyString$ has a dollar sign appended to the variable name and
is dimensioned as a String data type.
The following table shows the type declaration characters and corresponding
data types.
Type Declaration Character Data Type
-------------------------- ---------
<WWBLOCKQUOTE>
% Integer
& Long
! Single
# Double
$ String
@ Currency
Even when using type declaration characters, you still need to declare your
variables when you have Option Explicit at the beginning of the Module.
Using Option Explicit is recommended to prevent problems due to misspelled
variable names. When "Require Variable Declaration" is checked in the
Editor Tab of the Options dialog box from the Tools Menu, Option Explicit
is added to new Modules automatically. If you use Option Explicit, but you
do not declare your variables, you will receive the following error message
at run-time:
Compile Error
Variable Not Defined
To prevent this error from occurring, you can either remove Option Explicit
or explicitly declare your variables. Using type declaration characters
allows you to shorten these statements. For example, you can use this:
instead of this:
Both statements declare MyVar to be a memory variable of type String.