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Returns the numbers contained in a string as a numeric value of appropriate type.
Public Overloads Function Val(ByVal InputStr As String) As Double ' -or- Public Overloads Function Val(ByVal Expression As Object) As Double ' -or- Public Overloads Function Val(ByVal Expression As Char) As Integer
- Expression, InputStr
Required. Any valid String expression, Object variable, or Char value. If Expression is of type Object, its value must be convertible to String or an error occurs.
|Exception type||Error number||Condition|
InputStr is too large.
Number is badly formed.
Object type expression not convertible to String.
See the "Error number" column if you are upgrading Visual Basic 6.0 applications that use unstructured error handling. (You can compare the error number against the.) However, when possible, you should consider replacing such error control with .
The Val function stops reading the string at the first character it cannot recognize as part of a number. Symbols and characters that are often considered parts of numeric values, such as dollar signs and commas, are not recognized. However, the function recognizes the radix prefixes &O (for octal) and &H (for hexadecimal). Blanks, tabs, and linefeed characters are stripped from the argument.
The following call returns the value 1615198.
Val(" 1615 198th Street N.E.")
The following call returns the decimal value -1.
The Val function recognizes only the period (.) as a valid decimal separator. When different decimal separators are used, as in international applications, use CDbl or CInt instead to convert a string to a number. To convert the string representation of a number in a particular culture to a numeric value, use the numeric type's Parse(String, IFormatProvider) method. For example, usewhen converting a string to a Double.
The following example uses the Val function to return the numbers contained in each string. Val stops converting at the first character that cannot be interpreted as a numeric digit, numeric modifier, numeric punctuation, or white space.
Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)