Windows Dev Center

The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Decimal Implicit Conversion (UInt64 to Decimal)

Defines an explicit conversion of a 64-bit unsigned integer to a Decimal.

This API is not CLS-compliant. 

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

public static implicit operator decimal (
	ulong value


Type: System.UInt64

The 64-bit unsigned integer to convert.

Return Value

Type: System.Decimal
The converted 64-bit unsigned integer.

The overloads of the Implicit method define the types from which the compiler can automatically convert a Decimal value without an explicit casting operator (in C#) or a call to a conversion function (in Visual Basic). They are widening conversions that do not involve data loss and do not throw an OverflowException exception.

The following example converts UInt64 values to Decimal numbers by using the UInt64 to Decimal conversion.

using System;

public class Example
    public static void Main()
        // Define an array of 64-bit unsigned integer values. 
        ulong[] values = { ulong.MinValue, ulong.MaxValue, 
                           0xFFFFFFFFFFFF, 123456789123456789, 
                           1000000000000000 };
        // Convert each value to a Decimal. 
        foreach (var value in values) {
           Decimal decValue = value;
           Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
                             value.GetType().Name, decValue,
// The example displays the following output: 
//    0 (UInt64) --> 0 (Decimal) 
//    18446744073709551615 (UInt64) --> 18446744073709551615 (Decimal) 
//    281474976710655 (UInt64) --> 281474976710655 (Decimal) 
//    123456789123456789 (UInt64) --> 123456789123456789 (Decimal) 
//    1000000000000000 (UInt64) --> 1000000000000000 (Decimal)

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
© 2015 Microsoft