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Convert.ToDecimal Method (String)

Updated: May 2009

Converts the specified string representation of a number to an equivalent decimal number.

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

public static decimal ToDecimal(
	string value
)

Parameters

value
Type: System.String

A string that contains a number to convert.

Return Value

Type: System.Decimal
A decimal number that is equivalent to the number in value, or 0 (zero) if value is null.

ExceptionCondition
FormatException

value is not a number in a valid format.

OverflowException

value represents a number that is less than MinValue or greater than MaxValue.

The return value is the result of invoking the Decimal.Parse method on value.

If you prefer not to handle an exception if the conversion fails, you can call the Decimal.TryParse method instead. It returns a Boolean value that indicates whether the conversion succeeded or failed.

The following example illustrates the use of ToDecimal. It attempts to convert a String to a Decimal, and throws the possible exceptions that may arise during the conversion.

		public void ConvertStringDecimal(string stringVal) {
			decimal decimalVal = 0;
			
			try {
				decimalVal = System.Convert.ToDecimal(stringVal);
				System.Console.WriteLine(
					"The string as a decimal is {0}.", decimalVal);
			} 
			catch (System.OverflowException){
				System.Console.WriteLine(
					"The conversion from string to decimal overflowed.");
			}
			catch (System.FormatException) {
				System.Console.WriteLine(
					"The string is not formatted as a decimal.");
			}
			catch (System.ArgumentNullException) {
				System.Console.WriteLine(
					"The string is null.");
			}

			// Decimal to string conversion will not overflow.
			stringVal = System.Convert.ToString(decimalVal);
			System.Console.WriteLine(
				"The decimal as a string is {0}.", stringVal);
		}	

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Date

History

Reason

May 2009

Expanded the Remarks section.

Customer feedback.

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