BigInteger Narrowing Conversion (Decimal to BigInteger)

 
equivalentCodeEntityM:System.Numerics.BigInteger.#ctor(System.Decimal)

Defines an explicit conversion of a Decimal object to a BigInteger value.

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

Public Shared Narrowing Operator CType (
	value As Decimal
) As BigInteger

Parameters

value
Type: System.Decimal

The value to convert to a BigInteger.

Return Value

Type: System.Numerics.BigInteger

An object that contains the value of the value parameter.

Any fractional part of the value parameter is truncated before conversion.

The overloads of the Narrowing(Decimal to BigInteger) method define the types to which or from which a BigInteger object can be converted. Because the conversion from Decimal to BigInteger can involve truncating any fractional part of value, language compilers do not perform this conversion automatically. Instead, they perform the conversion only if a casting operator (in C#) or a conversion function (such as CType in Visual Basic) is used. Otherwise, they display a compiler error.

The following example converts the individual elements in an array of Decimal values to BigInteger objects, and then displays the result of each conversion. Note that any fractional part of a Decimal value is truncated during the conversion.

' Explicit Decimal to BigInteger conversion
Dim decimals() As Decimal = { Decimal.MinValue, -15632.991d, 9029321.12d, 
                              Decimal.MaxValue }
Dim number As BigInteger 

Console.WriteLine("{0,35} {1,35}", "Decimal", "BigInteger")
Console.WriteLine()
For Each value As Decimal In decimals
   number = CType(value, BigInteger)
   Console.WriteLine("{0,35} {1,35}",
                     value, number)
Next
' The example displays the following output:
'
'                          Decimal                          BigInteger
'    
'    -79228162514264337593543950335      -79228162514264337593543950335
'                       -15632.991                              -15632
'                       9029321.12                             9029321
'    79228162514264337593543950335       79228162514264337593543950335

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone
Available since 8.1
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