Class Random

Represents a pseudo-random number generator, based on the sourcecode of System.Random. This implementation identifies- and deals with some multithreading concurrency problems.

Inheritance
System.Object
Random
Namespace: ImageVault.Common.Lib
Assembly: ImageVault.Common.dll
Syntax
public class Random : Object

Constructors

Random()

Initializes a new instance of the Random class, using a time-dependent default seed value.

Declaration
public Random()

Random(Int32)

Initializes a new instance of the Random class, using the specified seed value.

Declaration
public Random(int seed)
Parameters
Type Name Description
System.Int32 seed

A number used to calculate a starting value for the pseudo-random number sequence. If a negative number is specified, the absolute value of the number is used.

Methods

Next()

Returns a non-negative random integer.

Declaration
public virtual int Next()
Returns
Type Description
System.Int32

A 32-bit signed integer that is greater than or equal to 0 and less than System.Int32.MaxValue.

Next(Int32)

Returns a non-negative random integer that is less than the specified maximum.

Declaration
public virtual int Next(int maxValue)
Parameters
Type Name Description
System.Int32 maxValue

The exclusive upper bound of the random number to be generated. maxValue must be greater than or equal to 0.
Returns
Type Description
System.Int32

A 32-bit signed integer that is greater than or equal to 0, and less than maxValue; that is, the range of return values ordinarily includes 0 but not maxValue. However, if maxValue equals 0, maxValue is returned.
Exceptions
Type Condition
System.ArgumentOutOfRangeException

maxValue is less than 0.

Next(Int32, Int32)

Returns a random integer that is within a specified range.

Declaration
public virtual int Next(int minValue, int maxValue)
Parameters
Type Name Description
System.Int32 minValue

The inclusive lower bound of the random number returned.

System.Int32 maxValue

The exclusive upper bound of the random number returned. maxValue must be greater than or equal to minValue.
Returns
Type Description
System.Int32

A 32-bit signed integer greater than or equal to minValue and less than maxValue; that is, the range of return values includes minValue but not maxValue. If minValue equals maxValue, minValue is returned.
Exceptions
Type Condition
System.ArgumentOutOfRangeException

minValue is greater than maxValue.

NextBytes(Byte[])

Fills the elements of a specified array of bytes with random numbers.

Declaration
public virtual void NextBytes(byte[] buffer)
Parameters
Type Name Description
System.Byte[] buffer

An array of bytes to contain random numbers.

Exceptions
Type Condition
System.ArgumentNullException

buffer is null.

NextDouble()

Returns a random floating-point number that is greater than or equal to 0.0, and less than 1.0.

Declaration
public virtual double NextDouble()
Returns
Type Description
System.Double

A double-precision floating point number that is greater than or equal to 0.0, and less than 1.0.

Sample()

Returns a random floating-point number between 0.0 and 1.0.

Declaration
protected virtual double Sample()
Returns
Type Description
System.Double

A double-precision floating point number that is greater than or equal to 0.0, and less than 1.0.

Extension Methods