Int64.Parse Method (String, NumberStyles)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Converts the string representation of a number in a specified style to its 64-bit signed integer equivalent.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public Shared Function Parse ( _
    s As String, _
    style As NumberStyles _
) As Long

public static long Parse(
    string s,
    NumberStyles style
)

style
Type: System.Globalization.NumberStyles
A bitwise combination of NumberStyles values that indicates the permitted format of s. A typical value to specify is Integer.

Type: System.Int64
A 64-bit signed integer equivalent to the number specified in s.

Exception	Condition
ArgumentNullException	s is nulla null reference (Nothing in Visual Basic).
ArgumentException	style is not a NumberStyles value. -or- style is not a combination of AllowHexSpecifier and HexNumber values.
FormatException	s is not in a format compliant with style.
OverflowException	s represents a number less than MinValue or greater than MaxValue.

The s parameter contains a number of the form:

[ws][sign]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 if permitted by style.
sign	An optional sign.
digits	A sequence of digits from 0 through 9.
hexdigits	A sequence of hexadecimal digits from 0 through f, or 0 through F.

Supported in: 5, 4, 3

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.