Convert.ToDecimal Method (String)

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.

Using the ToDecimal(String) method is equivalent to passing value to the Decimal.Parse(String) method. value is interpreted by using the formatting conventions of the current thread culture.

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);
		}	

.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.

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft