expression(required; String or Numeric)
A string or numeric expression that evaluates to a number between 0 and 255
expression converted to Byte data type
expression to a Byte data type
If the expression to be converted is a string, the string must be capable of conversion to a numeric expression; this can be checked using the IsNumeric function.
expression evaluates to less than 0 or
more than 255, a runtime error is generated.
If the value of
expression is not a whole
number, CByte rounds the number prior to
If IsNumeric(sMyNumber) Then If val(sMyNumber) >= 0 and val(sMyNumber) <= 255 Then BytMyNumber = CByte(sMyNumber) End If End If
Check that the value you pass to CByte is neither negative nor greater than 255.
Use IsNumeric to ensure that the value passed to CByte can be converted to a numeric expression.
When using CByte to convert floating point numbers, fractional values up to but not including .5 are rounded down, while values above but not including .5 are rounded up. Values whose fractional component is exactly equal to .5 are rounded up if their integral component is odd and down if their integral component is even.
The CByte function converts an expression to an
unsigned byte data type. To convert
expression to a signed byte data type,
create an instance of the SByte class and call its Parse method.
Like most ...