Click to Rate and Give Feedback
MSDN
MSDN Library
.NET Development
.NET Framework 3.5
System Namespace
Int64 Structure
Collapse All/Expand All Collapse All
This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
Int64 Structure

Represents a 64-bit signed integer.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Structure Int64 _
    Implements IComparable, IFormattable, IConvertible, IComparable(Of Long),  _
    IEquatable(Of Long)
Visual Basic (Usage)
Dim instance As Int64
C#
[SerializableAttribute]
[ComVisibleAttribute(true)]
public struct Int64 : IComparable, IFormattable, 
    IConvertible, IComparable<long>, IEquatable<long>
Visual C++
[SerializableAttribute]
[ComVisibleAttribute(true)]
public value class Int64 : IComparable, 
    IFormattable, IConvertible, IComparable<long long>, IEquatable<long long>
JScript
JScript supports the use of structures, but not the declaration of new ones.

The Int64 value type represents integers with values ranging from negative 9,223,372,036,854,775,808 through positive 9,223,372,036,854,775,807.

Int64 provides methods to compare instances of this type, convert the value of an instance to its string representation, and convert the string representation of a number to an instance of this type.

This type implements interfaces IComparable, IComparable<(Of <(T>)>), IFormattable, and IConvertible. Use the Convert class for conversions instead of this type's explicit interface member implementation of IConvertible.

All members of this type are thread safe. Members that appear to modify instance state actually return a new instance initialized with the new value. As with any other type, reading and writing to a shared variable that contains an instance of this type must be protected by a lock to guarantee thread safety.

Caution noteCaution:

Assigning an instance of this type is not thread safe on all hardware platforms because the binary representation of that instance might be too large to assign in a single atomic operation.

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
Tags What's this?: Add a tag
Community Content   What is Community Content?
Add new content RSS  Annotations
Processing
© 2009 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks | Privacy Statement | Site Feedback
Page view tracker