Any valid numeric expression or expression capable of conversion to a number
A String representation of
number from a numeric to a string
number cannot be converted to a string,
an InvalidCastException error occurs. To prevent this, you can check
the value of
number by passing it to the
IsNumeric function before calling
number is not a numeric value or is not
capable of conversion to a number (so that it can in turn be
converted to a string), an InvalidCastException exception occurs.
If the return value is positive, the Str
function always includes a leading space in the returned string for
the sign of
Use the LTrim function to remove the leading space that the Str function adds to the start of the returned string.
Both the CStr and Format functions have now superceded the Str function. The CStr function does not add a leading space for the sign of a positive number. Both the CStr and the Format functions are internationally aware, able to recognize decimal delimiters other than the period (.).