Struct Int64

Represents a 64-bit signed integer.

Inherited Members

ValueType.Equals(Object)

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetHashCode()

Object.GetType()

Namespace: System

Assembly: mscorlib.dll

Syntax

public struct Int64

Fields

MaxValue

Represents the largest possible value of an Int64. This field is constant.

Declaration

public const long MaxValue = 9223372036854775807L

Field Value

Type	Description
Int64

Remarks

The value of this constant is 9,223,372,036,854,775,807; that is, hexadecimal 0x7FFFFFFFFFFFFFFF.

MinValue

Represents the smallest possible value of an Int64. This field is constant.

Declaration

public const long MinValue = -9223372036854775808L

Field Value

Type	Description
Int64

Remarks

The value of this constant is negative 9,223,372,036,854,775,808; that is, hexadecimal 0x8000000000000000.

Methods

Parse(String)

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

Declaration

public static long Parse(string s)

Parameters

Type	Name	Description
String	s	A string containing a number to convert.

Returns

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

Exceptions

Type	Condition
ArgumentNullException	s is null.

ToString()

Converts the numeric value of this instance to its equivalent string representation.

Declaration

public override string ToString()

Returns

Type	Description
String	The string representation of the value of this instance, consisting of a minus sign if the value is negative, and a sequence of digits ranging from 0 to 9 with no leading zeroes.

Overrides

Object.ToString()

ToString(String)

Converts the numeric value of this instance to its equivalent string representation, using the specified format.

Declaration

public string ToString(string format)

Parameters

Type	Name	Description
String	format	A numeric format string.

Returns

Type	Description
String	The string representation of the value of this instance as specified by format.

TryParse(String, out Int64)

Converts the string representation of a number to its 64-bit signed integer equivalent. A return value indicates whether the conversion succeeded.

Declaration

public static bool TryParse(string s, out long result)

Parameters

Type	Name	Description
String	s	Converts the string representation of a number to its 64-bit signed integer equivalent. A return value indicates whether the conversion succeeded.
Int64	result	When this method returns, contains the 64-bit signed integer value equivalent of the number contained in s, if the conversion succeeded, or zero if the conversion failed. The conversion fails if the s parameter is null or Empty, is not of the correct format, or represents a number less than MinValue or greater than MaxValue. This parameter is passed uninitialized; any value originally supplied in result will be overwritten.

Returns

Type	Description
Boolean	true if s was converted successfully; otherwise, false.

Remarks

The TryParse(String, out Int64) method is like the Parse(String) method, except the TryParse(String, out Int64) method does not throw an exception if the conversion fails. It eliminates the need to use exception handling to test for a FormatException in the event that s is invalid and cannot be successfully parsed.