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Decimal Structure

Represents a decimal number.

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

[SerializableAttribute]
[ComVisibleAttribute(true)]
public struct Decimal : IFormattable, IComparable, 
	IConvertible, IDeserializationCallback, IComparable<decimal>, IEquatable<decimal>

The Decimal type exposes the following members.

  NameDescription
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(Double)Initializes a new instance of Decimal to the value of the specified double-precision floating-point number.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(Int32)Initializes a new instance of Decimal to the value of the specified 32-bit signed integer.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(Int32[])Initializes a new instance of Decimal to a decimal value represented in binary and contained in a specified array.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(Int64)Initializes a new instance of Decimal to the value of the specified 64-bit signed integer.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(Single)Initializes a new instance of Decimal to the value of the specified single-precision floating-point number.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(UInt32)Initializes a new instance of Decimal to the value of the specified 32-bit unsigned integer.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(UInt64)Initializes a new instance of Decimal to the value of the specified 64-bit unsigned integer.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecimal(Int32, Int32, Int32, Boolean, Byte)Initializes a new instance of Decimal from parameters specifying the instance's constituent parts.
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  NameDescription
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsAddAdds two specified Decimal values.
Public methodStatic memberSupported by Portable Class LibrarySupported in .NET for Windows Store appsCeilingReturns the smallest integral value that is greater than or equal to the specified decimal number.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsCompareCompares two specified Decimal values.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsCompareTo(Decimal)Compares this instance to a specified Decimal object and returns a comparison of their relative values.
Public methodSupported by the XNA FrameworkCompareTo(Object)Compares this instance to a specified object and returns a comparison of their relative values.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDivideDivides two specified Decimal values.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsEquals(Decimal)Returns a value indicating whether this instance and a specified Decimal object represent the same value.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsEquals(Object)Returns a value indicating whether this instance and a specified Object represent the same type and value. (Overrides ValueType.Equals(Object).)
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsEquals(Decimal, Decimal)Returns a value indicating whether two specified instances of Decimal represent the same value.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsFloorRounds a specified Decimal number to the closest integer toward negative infinity.
Public methodStatic memberFromOACurrencyConverts the specified 64-bit signed integer, which contains an OLE Automation Currency value, to the equivalent Decimal value.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetBitsConverts the value of a specified instance of Decimal to its equivalent binary representation.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetHashCodeReturns the hash code for this instance. (Overrides ValueType.GetHashCode().)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodSupported by the XNA FrameworkGetTypeCodeReturns the TypeCode for value type Decimal.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMultiplyMultiplies two specified Decimal values.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsNegateReturns the result of multiplying the specified Decimal value by negative one.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsParse(String)Converts the string representation of a number to its Decimal equivalent.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsParse(String, NumberStyles)Converts the string representation of a number in a specified style to its Decimal equivalent.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsParse(String, IFormatProvider)Converts the string representation of a number to its Decimal equivalent using the specified culture-specific format information.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsParse(String, NumberStyles, IFormatProvider)Converts the string representation of a number to its Decimal equivalent using the specified style and culture-specific format.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsRemainderComputes the remainder after dividing two Decimal values.
Public methodStatic memberRound(Decimal)Rounds a decimal value to the nearest integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibraryRound(Decimal, Int32)Rounds a Decimal value to a specified number of decimal places.
Public methodStatic memberRound(Decimal, MidpointRounding)Rounds a decimal value to the nearest integer. A parameter specifies how to round the value if it is midway between two other numbers.
Public methodStatic memberRound(Decimal, Int32, MidpointRounding)Rounds a decimal value to a specified precision. A parameter specifies how to round the value if it is midway between two other numbers.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsSubtractSubtracts one specified Decimal value from another.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToByteConverts the value of the specified Decimal to the equivalent 8-bit unsigned integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToDoubleConverts the value of the specified Decimal to the equivalent double-precision floating-point number.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToInt16Converts the value of the specified Decimal to the equivalent 16-bit signed integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToInt32Converts the value of the specified Decimal to the equivalent 32-bit signed integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToInt64Converts the value of the specified Decimal to the equivalent 64-bit signed integer.
Public methodStatic memberToOACurrencyConverts the specified Decimal value to the equivalent OLE Automation Currency value, which is contained in a 64-bit signed integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToSByteConverts the value of the specified Decimal to the equivalent 8-bit signed integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToSingleConverts the value of the specified Decimal to the equivalent single-precision floating-point number.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToString()Converts the numeric value of this instance to its equivalent string representation. (Overrides ValueType.ToString().)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToString(IFormatProvider)Converts the numeric value of this instance to its equivalent string representation using the specified culture-specific format information.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToString(String)Converts the numeric value of this instance to its equivalent string representation, using the specified format.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToString(String, IFormatProvider)Converts the numeric value of this instance to its equivalent string representation using the specified format and culture-specific format information.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToUInt16Converts the value of the specified Decimal to the equivalent 16-bit unsigned integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToUInt32Converts the value of the specified Decimal to the equivalent 32-bit unsigned integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToUInt64Converts the value of the specified Decimal to the equivalent 64-bit unsigned integer.
Public methodStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsTruncateReturns the integral digits of the specified Decimal; any fractional digits are discarded.
Public methodStatic memberSupported by Portable Class LibrarySupported in .NET for Windows Store appsTryParse(String, Decimal)Converts the string representation of a number to its Decimal equivalent. A return value indicates whether the conversion succeeded or failed.
Public methodStatic memberSupported by Portable Class LibrarySupported in .NET for Windows Store appsTryParse(String, NumberStyles, IFormatProvider, Decimal)Converts the string representation of a number to its Decimal equivalent using the specified style and culture-specific format. A return value indicates whether the conversion succeeded or failed.
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  NameDescription
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsAdditionAdds two specified Decimal values.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDecrementDecrements the Decimal operand by one.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsDivisionDivides two specified Decimal values.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsEqualityReturns a value that indicates whether two Decimal values are equal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to Byte)Defines an explicit conversion of a Decimal to an 8-bit unsigned integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to UInt16)Defines an explicit conversion of a Decimal to a 16-bit unsigned integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to SByte)Defines an explicit conversion of a Decimal to an 8-bit signed integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to Int16)Defines an explicit conversion of a Decimal to a 16-bit signed integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to Single)Defines an explicit conversion of a Decimal to a single-precision floating-point number.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to Double)Defines an explicit conversion of a Decimal to a double-precision floating-point number.
Public operatorStatic memberSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to Char)Defines an explicit conversion of a Decimal to a Unicode character.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to UInt64)Defines an explicit conversion of a Decimal to a 64-bit unsigned integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to Int32)Defines an explicit conversion of a Decimal to a 32-bit signed integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to UInt32)Defines an explicit conversion of a Decimal to a 32-bit unsigned integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Decimal to Int64)Defines an explicit conversion of a Decimal to a 64-bit signed integer.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Double to Decimal)Defines an explicit conversion of a double-precision floating-point number to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsExplicit(Single to Decimal)Defines an explicit conversion of a single-precision floating-point number to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGreaterThanReturns a value indicating whether a specified Decimal is greater than another specified Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGreaterThanOrEqualReturns a value indicating whether a specified Decimal is greater than or equal to another specified Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(Byte to Decimal)Defines an explicit conversion of an 8-bit unsigned integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(Char to Decimal)Defines an explicit conversion of a Unicode character to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(Int16 to Decimal)Defines an explicit conversion of a 16-bit signed integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(Int32 to Decimal)Defines an explicit conversion of a 32-bit signed integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(Int64 to Decimal)Defines an explicit conversion of a 64-bit signed integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(SByte to Decimal)Defines an explicit conversion of an 8-bit signed integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(UInt16 to Decimal)Defines an explicit conversion of a 16-bit unsigned integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(UInt32 to Decimal)Defines an explicit conversion of a 32-bit unsigned integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsImplicit(UInt64 to Decimal)Defines an explicit conversion of a 64-bit unsigned integer to a Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsIncrementIncrements the Decimal operand by 1.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsInequalityReturns a value that indicates whether two Decimal objects have different values.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsLessThanReturns a value indicating whether a specified Decimal is less than another specified Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsLessThanOrEqualReturns a value indicating whether a specified Decimal is less than or equal to another specified Decimal.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsModulusReturns the remainder resulting from dividing two specified Decimal values.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMultiplyMultiplies two specified Decimal values.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsSubtractionSubtracts two specified Decimal values.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsUnaryNegationNegates the value of the specified Decimal operand.
Public operatorStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsUnaryPlusReturns the value of the Decimal operand (the sign of the operand is unchanged).
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  NameDescription
Public fieldStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMaxValueRepresents the largest possible value of Decimal. This field is constant and read-only.
Public fieldStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMinusOneRepresents the number negative one (-1).
Public fieldStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMinValueRepresents the smallest possible value of Decimal. This field is constant and read-only.
Public fieldStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsOneRepresents the number one (1).
Public fieldStatic memberSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsZeroRepresents the number zero (0).
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  NameDescription
Explicit interface implemetationPrivate methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsIComparable.CompareToCompares the current instance with another object of the same type and returns an integer that indicates whether the current instance precedes, follows, or occurs in the same position in the sort order as the other object.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToBooleanInfrastructure. For a description of this member, see IConvertible.ToBoolean.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToByteInfrastructure. For a description of this member, see IConvertible.ToByte.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToCharInfrastructure. This conversion is not supported. Attempting to use this method throws an InvalidCastException.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToDateTimeInfrastructure. This conversion is not supported. Attempting to use this method throws an InvalidCastException.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToDecimalInfrastructure. For a description of this member, see IConvertible.ToDecimal.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToDoubleInfrastructure. For a description of this member, see IConvertible.ToDouble.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToInt16Infrastructure. For a description of this member, see IConvertible.ToInt16.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToInt32Infrastructure. For a description of this member, see IConvertible.ToInt32.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToInt64Infrastructure. For a description of this member, see IConvertible.ToInt64.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToSByteInfrastructure. For a description of this member, see IConvertible.ToSByte.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToSingleInfrastructure. For a description of this member, see IConvertible.ToSingle.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToTypeInfrastructure. For a description of this member, see IConvertible.ToType.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToUInt16Infrastructure. For a description of this member, see IConvertible.ToUInt16.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToUInt32Infrastructure. For a description of this member, see IConvertible.ToInt32.
Explicit interface implemetationPrivate methodSupported by the XNA FrameworkIConvertible.ToUInt64Infrastructure. For a description of this member, see IConvertible.ToInt64.
Explicit interface implemetationPrivate methodIDeserializationCallback.OnDeserializationInfrastructure. Runs when the deserialization of an object has been completed.
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The Decimal value type represents decimal numbers ranging from positive 79,228,162,514,264,337,593,543,950,335 to negative 79,228,162,514,264,337,593,543,950,335. The Decimal value type is appropriate for financial calculations that require large numbers of significant integral and fractional digits and no round-off errors. The Decimal type does not eliminate the need for rounding. Rather, it minimizes errors due to rounding. For example, the following code produces a result of 0.9999999999999999999999999999 instead of 1.

decimal dividend = Decimal.One;
decimal divisor = 3;
// The following displays 0.9999999999999999999999999999 to the console
Console.WriteLine(dividend/divisor * divisor);   

When the result of the division and multiplication is passed to the Round method, the result suffers no loss of precision, as the following code shows.

decimal dividend = Decimal.One;
decimal divisor = 3;
// The following displays 1.00 to the console
Console.WriteLine(Math.Round(dividend/divisor * divisor, 2));   

A decimal number is a floating-point value that consists of a sign, a numeric value where each digit in the value ranges from 0 to 9, and a scaling factor that indicates the position of a floating decimal point that separates the integral and fractional parts of the numeric value.

The binary representation of a Decimal value consists of a 1-bit sign, a 96-bit integer number, and a scaling factor used to divide the 96-bit integer and specify what portion of it is a decimal fraction. The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28. Therefore, the binary representation of a Decimal value the form, ((-296 to 296) / 10(0 to 28)), where -(296-1) is equal to MinValue, and 296-1 is equal to MaxValue. For more information about the binary representation of Decimal values and an example, see the Decimal(Int32[]) constructor and the GetBits method.

The scaling factor also preserves any trailing zeros in a Decimal number. Trailing zeros do not affect the value of a Decimal number in arithmetic or comparison operations. However, trailing zeros might be revealed by the ToString method if an appropriate format string is applied.

Conversion Considerations

This type provides methods that convert Decimal values to and from SByte, Int16, Int32, Int64, Byte, UInt16, UInt32, and UInt64 values. Conversions from these integral types to Decimal are widening conversions that never lose information or throw exceptions.

Conversions from Decimal to any of the integral types are narrowing conversions that round the Decimal value to the nearest integer value toward zero. Some languages, such as C#, also support the conversion of Decimal values to Char values. If the result of these conversions cannot be represented in the destination type, an OverflowException exception is thrown.

The Decimal type also provides methods that convert Decimal values to and from Single and Double values. Conversions from Decimal to Single or Double are narrowing conversions that might lose precision but not information about the magnitude of the converted value. The conversion does not throw an exception.

Conversions from Single or Double to Decimal throw an OverflowException exception if the result of the conversion cannot be represented as a Decimal.

Performing Operations on Decimal Values

The Decimal type supports standard mathematical operations such as addition, subtraction, division, multiplication, and unary negation. You can also work directly with the binary representation of a Decimal value by calling the GetBits method.

To compare two Decimal values, you can use the standard numeric comparison operators, or you can call the CompareTo or Equals method.

You can also call the members of the Math class to perform a wide range of numeric operations, including getting the absolute value of a number, determining the maximum or minimum value of two Decimal values, getting the sign of a number, and rounding a number.

The following code example demonstrates the use of Decimal.

	/// <summary> 
	/// Keeping my fortune in Decimals to avoid the round-off errors. 
	/// </summary> 
	class PiggyBank {
		protected decimal MyFortune;

		public void AddPenny() {
			MyFortune = Decimal.Add(MyFortune, .01m);
		}

		public decimal Capacity {
			get {
				return Decimal.MaxValue;
			}
		}

		public decimal Dollars {
			get {
				return Decimal.Floor(MyFortune);
			}
		}

		public decimal Cents {
			get {
				return Decimal.Subtract(MyFortune, Decimal.Floor(MyFortune));
			}
		}

		public override string ToString() {
			return MyFortune.ToString("C")+" in piggy bank";
		}
	}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, 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.

All members of this type are thread safe. Members that appear to modify instance state actually return a new instance initialized with the new value. As with any other type, reading and writing to a shared variable that contains an instance of this type must be protected by a lock to guarantee thread safety.

Caution noteCaution

Assigning an instance of this type is not thread safe on all hardware platforms because the binary representation of that instance might be too large to assign in a single atomic operation.

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