Convert.ToDecimal Method (Double)
Converts the value of the specified double-precision floating-point number to an equivalent decimal number.
Assembly: mscorlib (in mscorlib.dll)
The Decimal value returned by this method contains a maximum of 15 significant digits. If the value parameter contains more than 15 significant digits, it is rounded using rounding to nearest. The following example illustrates how the method uses rounding to nearest to return a Decimal value with 15 significant digits.
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.