Decimal.TryParse Method (String, NumberStyles, IFormatProvider, Decimal%)

Parameters

• s
  Type: System.String
  The string representation of the number to convert.

• style
  Type: System.Globalization.NumberStyles
  A bitwise combination of NumberStyles values that indicates the permitted format of s. A typical value to specify is Number.

• provider
  Type: System.IFormatProvider
  An IFormatProvider object that supplies culture-specific parsing information about s.

• result
  Type: System.Decimal%
  When this method returns, contains the Decimal number that is equivalent to the numeric value contained in s, if the conversion succeeded, or is zero if the conversion failed. The conversion fails if the s parameter is nulla null reference (Nothing in Visual Basic), is not in a format compliant with style, or represents a number less than MinValue or greater than MaxValue. This parameter is passed uninitialized.

Return Value

Type: System.Boolean
true if s was converted successfully; otherwise, false.

Dim value As String
Dim style As NumberStyles
Dim culture As CultureInfo
Dim number As Decimal

' Parse currency value using en-GB culture.
value = "£1,097.63"
style = NumberStyles.Number Or NumberStyles.AllowCurrencySymbol
culture = New CultureInfo("en-GB")
If Decimal.TryParse(value, style, culture, number) Then
   outputBlock.Text &= String.Format("Converted '{0}' to {1}.", value, number) & vbCrLf
Else
   outputBlock.Text &= String.Format("Unable to convert '{0}'.", value) & vbCrLf
End If
' Displays: 
'       Converted '£1,097.63' to 1097.63.

value = "1345,978"
style = NumberStyles.AllowDecimalPoint
culture = New CultureInfo("fr-FR")
If Decimal.TryParse(value, style, culture, number) Then
   outputBlock.Text &= String.Format("Converted '{0}' to {1}.", value, number) & vbCrLf
Else
   outputBlock.Text &= String.Format("Unable to convert '{0}'.", value) & vbCrLf
End If
' Displays:
'       Converted '1345,978' to 1345.978.

value = "1.345,978"
style = NumberStyles.AllowDecimalPoint Or NumberStyles.AllowThousands
culture = New CultureInfo("es-ES")
If Decimal.TryParse(value, style, culture, number) Then
   outputBlock.Text &= String.Format("Converted '{0}' to {1}.", value, number) & vbCrLf
Else
   outputBlock.Text &= String.Format("Unable to convert '{0}'.", value) & vbCrLf
End If
' Displays: 
'       Converted '1.345,978' to 1345.978.

value = "1 345,978"
If Decimal.TryParse(value, style, culture, number) Then
   outputBlock.Text &= String.Format("Converted '{0}' to {1}.", value, number) & vbCrLf
Else
   outputBlock.Text &= String.Format("Unable to convert '{0}'.", value) & vbCrLf
End If
' Displays:
'       Unable to convert '1 345,978'.

string value;
NumberStyles style;
CultureInfo culture;
decimal number;

// Parse currency value using en-GB culture.
value = "£1,097.63";
style = NumberStyles.Number | NumberStyles.AllowCurrencySymbol;
culture = new CultureInfo("en-GB");
if (Decimal.TryParse(value, style, culture, out number))
   outputBlock.Text += String.Format("Converted '{0}' to {1}.", value, number) + "\n";
else
   outputBlock.Text += String.Format("Unable to convert '{0}'.", value) + "\n";
// Displays: 
//       Converted '£1,097.63' to 1097.63.

value = "1345,978";
style = NumberStyles.AllowDecimalPoint;
culture = new CultureInfo("fr-FR");
if (Decimal.TryParse(value, style, culture, out number))
   outputBlock.Text += String.Format("Converted '{0}' to {1}.", value, number) + "\n";
else
   outputBlock.Text += String.Format("Unable to convert '{0}'.", value) + "\n";
// Displays:
//       Converted '1345,978' to 1345.978.

value = "1.345,978";
style = NumberStyles.AllowDecimalPoint | NumberStyles.AllowThousands;
culture = new CultureInfo("es-ES");
if (Decimal.TryParse(value, style, culture, out number))
   outputBlock.Text += String.Format("Converted '{0}' to {1}.", value, number) + "\n";
else
   outputBlock.Text += String.Format("Unable to convert '{0}'.", value) + "\n";
// Displays: 
//       Converted '1.345,978' to 1345.978.

value = "1 345,978";
if (Decimal.TryParse(value, style, culture, out number))
   outputBlock.Text += String.Format("Converted '{0}' to {1}.", value, number) + "\n";
else
   outputBlock.Text += String.Format("Unable to convert '{0}'.", value) + "\n";
// Displays:
//       Unable to convert '1 345,978'.