ToDecimal Method (String)

Convert.ToDecimal Method (String)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Converts the specified String representation of a number to an equivalent Decimal number.

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

'Declaration
Public Shared Function ToDecimal ( _
	value As String _
) As Decimal

Parameters

value
Type: System.String
A String containing a number to convert.

Return Value

Type: System.Decimal
A Decimal number equivalent to the value of value.
-or-
Zero if value is Nothing.

ExceptionCondition
FormatException

value is not a number in a valid format.

OverflowException

value represents a number 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 code sample illustrates the use of ToDecimal, by attempting to convert a String to a Decimal and throwing any of the possible exceptions that may arise during the conversion.


Public Sub ConvertStringDecimal(ByVal stringVal As String)
   Dim decimalVal As Decimal = 0

   Try
      decimalVal = System.Convert.ToDecimal(stringVal)
      outputBlock.Text &= String.Format("The string as a decimal is {0}.", _
                                decimalVal) & vbCrLf
   Catch exception As System.OverflowException
      outputBlock.Text &= String.Format( _
          "Overflow in string-to-decimal conversion.") & vbCrLf
   Catch exception As System.FormatException
      outputBlock.Text &= String.Format( _
          "The string is not formatted as a decimal.") & vbCrLf
   Catch exception As System.ArgumentException
      outputBlock.Text &= "The string is null." & vbCrLf
   End Try

   ' Decimal to string conversion will not overflow.
   stringVal = System.Convert.ToString(decimalVal)
   outputBlock.Text &= String.Format("The decimal as a string is {0}.", _
                             stringVal) & vbCrLf
End Sub


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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