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Decimal.Parse Method (String)

Converts the string representation of a number to its Decimal equivalent.

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

public static decimal Parse(
	string s
)

Parameters

s
Type: System.String

The string representation of the number to convert.

Return Value

Type: System.Decimal
The equivalent to the number contained in s.

ExceptionCondition
ArgumentNullException

s is null.

FormatException

s is not in the correct format.

OverflowException

s represents a number less than MinValue or greater than MaxValue.

Parameter s contains a number of the form:

[ws][sign][digits,]digits[.fractional-digits][ws]

Elements in square brackets ([ and ]) are optional. The following table describes each element.

Element

Description

ws

Optional white space.

sign

An optional sign.

digits

A sequence of digits ranging from 0 to 9.

,

A culture-specific thousands separator symbol.

.

A culture-specific decimal point symbol.

fractional-digits

A sequence of digits ranging from 0 to 9.

Parameter s is interpreted using the NumberStyles.Number style. This means that white space and thousands separators are allowed but currency symbols are not. To explicitly define the elements (such as currency symbols, thousands separators, and white space) that can be present in s, use either the Decimal.Parse(String, NumberStyles) or the Decimal.Parse(String, NumberStyles, IFormatProvider) method.

Parameter s is parsed using the formatting information in a NumberFormatInfo initialized for the current system culture. For more information, see CurrentInfo. To parse a string using the formatting information of some other culture, use the Decimal.Parse(String, IFormatProvider) or Decimal.Parse(String, NumberStyles, IFormatProvider) method.

If necessary, the value of s is rounded using rounding to nearest.

A Decimal has 29 digits of precision. If s represents a number that has more than 29 digits, but has a fractional part and is within the range of MaxValue and MinValue, the number is rounded, not truncated, to 29 digits using rounding to nearest.

If during a parse operation a separator is encountered in the s parameter, and the applicable currency or number decimal and group separators are the same, the parse operation assumes that the separator is a decimal separator rather than a group separator. For more information about separators, see CurrencyDecimalSeparator, NumberDecimalSeparator, CurrencyGroupSeparator, and NumberGroupSeparator.

The following code example uses the Parse(String) method to parse string representations of Decimal values.

string value;
decimal number;
// Parse an integer with thousands separators.  
value = "16,523,421";
number = Decimal.Parse(value);
Console.WriteLine("'{0}' converted to {1}.", value, number);
// Displays:  
//    16,523,421' converted to 16523421. 

// Parse a floating point value with thousands separators 
value = "25,162.1378";
number = Decimal.Parse(value);
Console.WriteLine("'{0}' converted to {1}.", value, number);
// Displays:  
//    25,162.1378' converted to 25162.1378. 

// Parse a floating point number with US currency symbol. 
value = "$16,321,421.75";
try
{
   number = Decimal.Parse(value);
   Console.WriteLine("'{0}' converted to {1}.", value, number);
}   
catch (FormatException)
{
   Console.WriteLine("Unable to parse '{0}'.", value);
}
// Displays: 
//    Unable to parse '$16,321,421.75'.    

// Parse a number in exponential notation 
value = "1.62345e-02";
try
{
   number = Decimal.Parse(value);
   Console.WriteLine("'{0}' converted to {1}.", value, number);
}   
catch (FormatException)
{
   Console.WriteLine("Unable to parse '{0}'.", value);
}
// Displays:  
//    Unable to parse '1.62345e-02'. 

.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.

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