BigInteger Explicit Conversion (BigInteger to Int64)
Defines an explicit conversion of a BigInteger object to a 64-bit signed integer value.
Assembly: System.Numerics (in System.Numerics.dll)
The overloads of the Explicit method define the types to which or from which a BigInteger object can be converted. Language compilers do not perform this conversion automatically because it can involve data loss. Instead, they perform the conversion only if a casting operator (in C#) or a conversion function (such as CType or CLng in Visual Basic) is used. Otherwise, they display a compiler error.
Because this operation defines a narrowing conversion, it can throw an OverflowException at run time if the BigInteger value is outside the range of the Int64 data type. There is no loss of precision in the resulting Int64 value if the conversion is successful.
The following example illustrates the conversion of BigInteger values to Int64 values. It also handles an OverflowException that is thrown because the BigInteger value is outside the range of the Int64 data type.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.