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)

static member Parse : 
        s:string -> int64

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.

Exception Condition
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

Optional white space.

sign

An optional sign.

digits

A sequence of digits ranging from 0 to 9.

The s parameter is interpreted using the NumberStyles.Integer style. In addition to decimal digits, only leading and trailing spaces together with a leading sign are allowed. To explicitly define the style elements that can be present in s, use either the Int64.Parse(String, NumberStyles) or the Int64.Parse(String, NumberStyles, IFormatProvider) method.

The s parameter is parsed using the formatting information in a NumberFormatInfo object that is initialized for the current system culture. To parse a string using the formatting information of some other culture, use the Int64.Parse(String, NumberStyles, IFormatProvider) method.

The following example demonstrates how to convert a string value into a 64-bit signed integer value using the Int64.Parse(String) method. It then displays the resulting long integer value.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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