Boolean Data Type

Holds values that can be only true or false.

Instructions

Default value
When you declare a variable of type Boolean and leave it uninitialized, its value is false.
Type characters
Boolean has no type characters.

Type conversion

When you convert a Boolean value to an integer value, the result can be different on different implementations. The compiler defines two integer equates, %TRUE and %FALSE, which hold an implementation's values for true and false.

Shared methods and properties

Boolean.False As Boolean
Returns the value that is false. The equivalent integer constant is %FALSE.
Boolean.FalseString As String
Returns a string value of "False".
Boolean.Parse(str As String) As Boolean
Tries to parse a string that shows as a Boolean.
Permitted strings include Boolean.FalseString and Boolean.TrueString (case-insensitive) and integer values. It parses "0" as false, and all other integers as true.
Boolean.True As Boolean
Returns the value that is true. The equivalent integer constant is %TRUE.
Boolean.TrueString As String
Returns a string value of "True".

Examples

Dim foo As Boolean