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Convert.ToInt64 Method (String)

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

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

public static function ToInt64(
	value : String
) : long

Parameters

value
Type: System.String

A string that contains a number to convert.

Return Value

Type: System.Int64
A 64-bit signed integer that is equivalent to the number in value, or 0 (zero) if value is a null reference (Nothing in Visual Basic).

ExceptionCondition
FormatException

value does not consist of an optional sign followed by a sequence of digits (0 through 9).

OverflowException

value represents a number that is less than Int64.MinValue or greater than Int64.MaxValue.

The result of invoking the Int64.Parse method on value.

The following example attempts to convert each element in an array of numeric strings to a long integer.

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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