| Int64Static: ParseEx |
Converts the string representation of a number in a specified style and culture-specific format to its 64-bit signed integer equivalent.
Public Function ParseEx( ByRef s As String, ByVal Style As NumberStyles, ByVal Provider As IFormatProvider ) As Int64
The Style parameter defines the style elements (such as white space or the positive sign) that are allowed in the s parameter for the parse operation to succeed. It must be a combination of bit flags from the NumberStyles enumeration. Depending on the value of Style, the s parameter may include the following elements:
[ws][$][sign][digits,]digits[.fractional_digits][e[sign]exponential_digits][ws]
Or, if style includes AllowHexSpecifier:
[ws]hexdigits[ws]
Elements in square brackets ([ and ]) are optional. The following table describes each element.
| Element | Description |
|---|---|
| ws | Optional white space. White space can appear at the beginning of s if Style includes the NumberStyles.AllowLeadingWhite flag, and it can appear at the end of s if Style includes the NumberStyles.AllowTrailingWhite flag. |
| $ | A culture-specific currency symbol. Its position in the string is defined by the NumberFormatInfo.CurrencyPositivePattern property of the NumberFormatInfo object returned by the GetFormat method of the Provider parameter. The currency symbol can appear in s if style includes the NumberStyles.AllowCurrencySymbol flag. |
|
digits fractional_digits expontial_digits |
A sequence of digits from 0 through 9. |
| , | A culture-specific thousands separator symbol. The thousands separator of the culture specified by Provider can appear in s if Style includes the NumberStyles.AllowThousands flag. |
| . |
A culture-specific decimal point symbol. The decimal point symbol of the culture specified by Provider can appear in s if style includes the NumberStyles.AllowDecimalPoint flag. Only the digit 0 can appear as a fractional digit for the parse operation to succeed; if fractional_digits includes any other digit, an OverflowException is thrown. |
| e | The e' or 'E' character, which indicates that the value is represented in exponential notation. The s parameter can represent a number in exponential notation if Style includes the NumberStyles.AllowExponent flag. |
| hexdigits | A sequence of hexadecimal digits from 0 through f, or 0 through F. |
A string expression beginning with "0x" or "&h" will be parsed as a hex value.
| Exception | Condition |
|---|---|
| FormatException | s is not in the correct format. |
| OverflowException | s represents a number less than MinValue or greater than MaxValue. |