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Int16.Parse Method (System) | Microsoft Learn

Source:: Int16.cs

Source:: Int16.cs

Source:: Int16.cs

Source:: Int16.cs

Converts the string representation of a number in a specified style and culture-specific format to its 16-bit signed integer equivalent.

public:
 static short Parse(System::String ^ s, System::Globalization::NumberStyles style, IFormatProvider ^ provider);

public:
 static short Parse(System::String ^ s, System::Globalization::NumberStyles style, IFormatProvider ^ provider) = System::Numerics::INumberBase<short>::Parse;

public static short Parse(string s, System.Globalization.NumberStyles style, IFormatProvider provider);

public static short Parse(string s, System.Globalization.NumberStyles style, IFormatProvider? provider);

static member Parse : string * System.Globalization.NumberStyles * IFormatProvider -> int16

Public Shared Function Parse (s As String, style As NumberStyles, provider As IFormatProvider) As Short

Parameters

s: String

A string containing a number to convert.

style: NumberStyles

A bitwise combination of enumeration values that indicates the style elements that can be present in s. A typical value to specify is Integer.

Returns

A 16-bit signed integer equivalent to the number specified in s.

Implements Exceptions

s is not in a format compliant with style.

Examples

The following example uses a variety of style and provider parameters to parse the string representations of Int16 values.

string value;
short number;
NumberStyles style;
CultureInfo provider;

// Parse string using "." as the thousands separator
// and " " as the decimal separator.
value = "19 694,00";
style = NumberStyles.AllowDecimalPoint | NumberStyles.AllowThousands;
provider = new CultureInfo("fr-FR");

number = Int16.Parse(value, style, provider);
Console.WriteLine("'{0}' converted to {1}.", value, number);
// Displays:
//    '19 694,00' converted to 19694.

try
{
   number = Int16.Parse(value, style, CultureInfo.InvariantCulture);
   Console.WriteLine("'{0}' converted to {1}.", value, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to parse '{0}'.", value);
}
// Displays:
//    Unable to parse '19 694,00'.

// Parse string using "$" as the currency symbol for en_GB and
// en-US cultures.
value = "$6,032.00";
style = NumberStyles.Number | NumberStyles.AllowCurrencySymbol;
provider = new CultureInfo("en-GB");

try
{
   number = Int16.Parse(value, style, CultureInfo.InvariantCulture);
   Console.WriteLine("'{0}' converted to {1}.", value, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to parse '{0}'.", value);
}
// Displays:
//    Unable to parse '$6,032.00'.

provider = new CultureInfo("en-US");
number = Int16.Parse(value, style, provider);
Console.WriteLine("'{0}' converted to {1}.", value, number);
// Displays:
//    '$6,032.00' converted to 6032.

// Parse string using "." as the thousands separator
// and " " as the decimal separator.
let value = "19 694,00"
let style = NumberStyles.AllowDecimalPoint ||| NumberStyles.AllowThousands
let provider = CultureInfo "fr-FR"

let number = Int16.Parse(value, style, provider)
printfn $"'{value}' converted to {number}." 
// Displays:
//    '19 694,00' converted to 19694.

try
    let number = Int16.Parse(value, style, CultureInfo.InvariantCulture)
    printfn $"'{value}' converted to {number}." 
with :? FormatException ->
    printfn $"Unable to parse '{value}'."
// Displays:
//    Unable to parse '19 694,00'.

// Parse string using "$" as the currency symbol for en_GB and
// en-US cultures.
let value = "$6,032.00"
let style = NumberStyles.Number ||| NumberStyles.AllowCurrencySymbol

try
    let number = Int16.Parse(value, style, CultureInfo.InvariantCulture)
    printfn $"'{value}' converted to {number}." 
with :? FormatException ->
    printfn $"Unable to parse '{value}'."
// Displays:
//    Unable to parse '$6,032.00'.

let provider = CultureInfo "en-US"
let number = Int16.Parse(value, style, provider)
printfn $"'{value}' converted to {number}."
// Displays:
//    '$6,032.00' converted to 6032.

Dim value As String
Dim number As Short
Dim style As NumberStyles
Dim provider As CultureInfo

' Parse string using "." as the thousands separator 
' and " " as the decimal separator.
value = "19 694,00"
style = NumberStyles.AllowDecimalPoint Or NumberStyles.AllowThousands
provider = New CultureInfo("fr-FR")

number = Int16.Parse(value, style, provider)
Console.WriteLine("'{0}' converted to {1}.", value, number)
' Displays:
'    '19 694,00' converted to 19694.

Try
   number = Int16.Parse(value, style, CultureInfo.InvariantCulture)
   Console.WriteLine("'{0}' converted to {1}.", value, number)
Catch e As FormatException
   Console.WriteLine("Unable to parse '{0}'.", value)
End Try
' Displays:
'    Unable to parse '19 694,00'.

' Parse string using "$" as the currency symbol for en_GB and
' en-US cultures.
value = "$6,032.00"
style = NumberStyles.Number Or NumberStyles.AllowCurrencySymbol
provider = New CultureInfo("en-GB")

Try
   number = Int16.Parse(value, style, CultureInfo.InvariantCulture)
   Console.WriteLine("'{0}' converted to {1}.", value, number)
Catch e As FormatException
   Console.WriteLine("Unable to parse '{0}'.", value)
End Try
' Displays:
'    Unable to parse '$6,032.00'.
                        
provider = New CultureInfo("en-US")
number = Int16.Parse(value, style, provider)
Console.WriteLine("'{0}' converted to {1}.", value, number)
' Displays:
'    '$6,032.00' converted to 6032.

Remarks

The style parameter defines the style elements (such as white space or the positive sign) that are allowed in the s parameter for the parse operation to succeed. It must be a combination of bit flags from the NumberStyles enumeration. Depending on the value of style, the s parameter may include the following elements:

[ws][$][sign][digits,]digits[.fractional_digits][e[sign]digits][ws]

Or, if style includes AllowHexSpecifier:

[ws]hexdigits[ws]

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

Note

Any terminating NUL (U+0000) characters in s are ignored by the parsing operation, regardless of the value of the style argument.

A string with digits only (which corresponds to the NumberStyles.None style) always parses successfully. Most of the remaining NumberStyles members control elements that may be but are not required to be present in this input string. The following table indicates how individual NumberStyles members affect the elements that may be present in s.

If the NumberStyles.AllowHexSpecifier flag is used, s must be the string representation of a hexadecimal value without a prefix. For example, "9AF3" parses successfully, but "0x9AF3" does not.. The only other flags that can be present in style are NumberStyles.AllowLeadingWhite and NumberStyles.AllowTrailingWhite. (The NumberStyles enumeration has a composite number style, NumberStyles.HexNumber, that includes both white space flags.)

The provider parameter is an IFormatProvider implementation whose GetFormat method obtains a NumberFormatInfo object. The NumberFormatInfo object provides culture-specific information about the format of s. If provider is null, the NumberFormatInfo object for the current culture is used.