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Int64.Parse Method (String, NumberStyles)

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)

public static long Parse(
	string s,
	NumberStyles style
)

Parameters

s
Type: System.String
A string containing a number to convert.
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.

Return Value

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

ExceptionCondition
ArgumentNullException

s is null.

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.

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

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

XNA Framework

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.

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