Int64.Parse Method (String)

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

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

public static long Parse(
	string s
)

Parameters

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

Return Value

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

ExceptionCondition
ArgumentNullException

s is null.

FormatException

s is not in the correct format.

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]

Elements in square brackets ([ and ]) are optional. The following table describes each element.

Element

Description

ws

An optional white space.

sign

An optional sign.

digits

A sequence of digits ranging from 0 to 9.

The s parameter is parsed using the formatting information in a NumberFormatInfo initialized for the current system culture. For more information, see CurrentInfo.

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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