VB.NET Language Pocket Reference

Name

Val Function — Microsoft.VisualBasic.Conversion

Synopsis

Val(expression)

expression required; String or Char

Any string representation of a number

Return Value

A Double able to hold the number contained in expression

Description

Converts a string representation of a number into a Double. The Val function starts reading the string with the leftmost character and stops at the first character that it does not recognize as being part of a valid number. For example, the statement:

iNumber = Val("1A1")

returns 1.

&O and &H (the octal and hexadecimal prefixes) are recognized by the Val function and the period (.) is recognized as a decimal delimitor. Currency symbols, such as $ and £, and delimiters, such as commas, are not recognized. Prior to processing expression, Val removes spaces, tabs, and line-feed characters.