Int16.Parse Methode

Source:

Int16.cs

Source:

Int16.cs

Source:

Int16.cs

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

Parameter

Gibt zurück

Eine 16-Bit-Ganzzahl mit Vorzeichen, die der Zahl in s entspricht.

Implementiert

Ausnahmen

Beispiele

Im folgenden Beispiel werden eine Vielzahl von style Parametern und provider verwendet, um die Zeichenfolgendarstellungen von Int16 Werten zu analysieren.

String^ value;
Int16 number;
NumberStyles style;

// Parse string using "." as the thousands separator 
// and " " as the decimal separator.
value = "19 694,00";
style = NumberStyles::AllowDecimalPoint | NumberStyles::AllowThousands;
CultureInfo^ provider = gcnew 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 ^e)
{
   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 = gcnew CultureInfo("en-GB");

try
{
   number = Int16::Parse(value, style, CultureInfo::InvariantCulture);
   Console::WriteLine("'{0}' converted to {1}.", value, number);
}
catch (FormatException ^e)
{
   Console::WriteLine("Unable to parse '{0}'.", value);
}
// Displays:
//    Unable to parse '$6,032.00'.
                        
provider = gcnew CultureInfo("en-US");
number = Int16::Parse(value, style, provider);
Console::WriteLine("'{0}' converted to {1}.", value, number);
// Displays:
//    '$6,032.00' converted to 6032.

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.

Hinweise

Der style Parameter definiert die Stilelemente (z. B. Leerzeichen oder positive Vorzeichen), die im s Parameter zulässig sind, damit der Analysevorgang erfolgreich ist. Es muss sich um eine Kombination von Bitflags aus der NumberStyles Enumeration handeln. Abhängig vom Wert von stylekann der s Parameter die folgenden Elemente enthalten:

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

Oder, wenn style enthält AllowHexSpecifier:

[ws]hexdigits[ws]

Elemente in eckigen Klammern ([ und ]) sind optional. In der folgenden Tabelle wird jedes Element beschrieben.

Eine Zeichenfolge mit nur Ziffern (die dem NumberStyles.None Format entsprechen) analysiert immer erfolgreich. Die meisten der verbleibenden NumberStyles Member steuern Elemente, die in dieser Eingabezeichenfolge möglicherweise vorhanden sein, aber nicht erforderlich sind. Die folgende Tabelle gibt an, wie sich einzelne NumberStyles Member auf die Elemente auswirken, die in svorhanden sein können.

Wenn das NumberStyles.AllowHexSpecifier Flag verwendet wird, s muss die Zeichenfolgendarstellung eines Hexadezimalwerts ohne Präfix sein. Beispielsweise analysiert "9AF3" erfolgreich, "0x9AF3" jedoch nicht. Die einzigen anderen Flags, die in style vorhanden sein können, sind NumberStyles.AllowLeadingWhite und NumberStyles.AllowTrailingWhite. (Die NumberStyles Enumeration weist eine zusammengesetzte Zahlenformatvorlage auf, NumberStyles.HexNumberdie beide Leerzeichenflags enthält.)

Der provider Parameter ist eine IFormatProvider Implementierung, deren GetFormat Methode ein NumberFormatInfo -Objekt abruft. Das NumberFormatInfo -Objekt stellt kulturspezifische Informationen zum Format von bereit s. Wenn provider ist null, wird das NumberFormatInfo -Objekt für die aktuelle Kultur verwendet.

Weitere Informationen

• NumberStyles
• ToString()
• Analysieren numerischer Zeichenfolgen in .NET

Source:

Int16.cs

Source:

Int16.cs

Source:

Int16.cs

public static short Parse (ReadOnlySpan<char> s, System.Globalization.NumberStyles style = System.Globalization.NumberStyles.Integer, IFormatProvider? provider = default);

public static short Parse (ReadOnlySpan<char> s, System.Globalization.NumberStyles style = System.Globalization.NumberStyles.Integer, IFormatProvider provider = default);

static member Parse : ReadOnlySpan<char> * System.Globalization.NumberStyles * IFormatProvider -> int16

Public Shared Function Parse (s As ReadOnlySpan(Of Char), Optional style As NumberStyles = System.Globalization.NumberStyles.Integer, Optional provider As IFormatProvider = Nothing) As Short

Parameter

Gibt zurück

Eine 16-Bit-Ganzzahl mit Vorzeichen, die der Zahl in s entspricht.

Implementiert

Source:

Int16.cs

Source:

Int16.cs

public static short Parse (ReadOnlySpan<byte> utf8Text, System.Globalization.NumberStyles style = System.Globalization.NumberStyles.Integer, IFormatProvider? provider = default);

static member Parse : ReadOnlySpan<byte> * System.Globalization.NumberStyles * IFormatProvider -> int16

Public Shared Function Parse (utf8Text As ReadOnlySpan(Of Byte), Optional style As NumberStyles = System.Globalization.NumberStyles.Integer, Optional provider As IFormatProvider = Nothing) As Short

Parameter

Gibt zurück

Das Ergebnis der Analyse utf8Textvon .

Implementiert

Source:

Int16.cs

Source:

Int16.cs

Source:

Int16.cs

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

public:
 static short Parse(System::String ^ s, IFormatProvider ^ provider) = IParsable<short>::Parse;

public static short Parse (string s, IFormatProvider provider);

public static short Parse (string s, IFormatProvider? provider);

static member Parse : string * IFormatProvider -> int16

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

Parameter

Gibt zurück

Eine 16-Bit-Ganzzahl mit Vorzeichen, die der Zahl in s entspricht.

Implementiert

Ausnahmen

Beispiele

Im folgenden Beispiel werden Zeichenfolgendarstellungen von Int16 Werten mit der Int16.Parse(String, IFormatProvider) -Methode analysiert.

String^ stringToConvert;
Int16 number;

stringToConvert = " 214 ";
try
{
   number = Int16::Parse(stringToConvert, CultureInfo::InvariantCulture);
   Console::WriteLine("Converted '{0}' to {1}.", stringToConvert, number);
}
catch (FormatException ^e)
{
   Console::WriteLine("Unable to parse '{0}'.", stringToConvert);
}
catch (OverflowException ^e)
{
   Console::WriteLine("'{0'} is out of range of the Int16 data type.", 
                     stringToConvert);
}

stringToConvert = " + 214";                     
try
{
   number = Int16::Parse(stringToConvert, CultureInfo::InvariantCulture);
   Console::WriteLine("Converted '{0}' to {1}.", stringToConvert, number);
}
catch (FormatException ^e)
{
   Console::WriteLine("Unable to parse '{0}'.", stringToConvert);
}
catch (OverflowException ^e)
{
   Console::WriteLine("'{0'} is out of range of the Int16 data type.", 
                     stringToConvert);
}

stringToConvert = " +214 "; 
try
{
   number = Int16::Parse(stringToConvert, CultureInfo::InvariantCulture);
   Console::WriteLine("Converted '{0}' to {1}.", stringToConvert, number);
}
catch (FormatException ^e)
{
   Console::WriteLine("Unable to parse '{0}'.", stringToConvert);
}
catch (OverflowException ^e)
{
   Console::WriteLine("'{0'} is out of range of the Int16 data type.", 
                     stringToConvert);
}
// The example displays the following output to the console:
//       Converted ' 214 ' to 214.
//       Unable to parse ' + 214'.
//       Converted ' +214 ' to 214.

string stringToConvert;
short number;

stringToConvert = " 214 ";
try
{
   number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture);
   Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to parse '{0}'.", stringToConvert);
}
catch (OverflowException)
{
   Console.WriteLine("'{0'} is out of range of the Int16 data type.",
                     stringToConvert);
}

stringToConvert = " + 214";
try
{
   number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture);
   Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to parse '{0}'.", stringToConvert);
}
catch (OverflowException)
{
   Console.WriteLine("'{0'} is out of range of the Int16 data type.",
                     stringToConvert);
}

stringToConvert = " +214 ";
try
{
   number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture);
   Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to parse '{0}'.", stringToConvert);
}
catch (OverflowException)
{
   Console.WriteLine("'{0'} is out of range of the Int16 data type.",
                     stringToConvert);
}
// The example displays the following output to the console:
//       Converted ' 214 ' to 214.
//       Unable to parse ' + 214'.
//       Converted ' +214 ' to 214.

let stringToConvert = " 214 "
try
    let number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture)
    printfn $"Converted '{stringToConvert}' to {number}." 
with 
| :? FormatException ->
    printfn $"Unable to parse '{stringToConvert}'."
| :? OverflowException ->
    printfn $"'{stringToConvert}' is out of range of the Int16 data type."

let stringToConvert = " + 214"
try
    let number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture)
    printfn $"Converted '{stringToConvert}' to {number}." 
with 
| :? FormatException ->
    printfn $"Unable to parse '{stringToConvert}'."
| :? OverflowException -> 
    printfn $"'{stringToConvert}' is out of range of the Int16 data type."

let stringToConvert = " +214 "
try
    let number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture)
    printfn $"Converted '{stringToConvert}' to {number}." 
with
| :? FormatException ->
    printfn $"Unable to parse '{stringToConvert}'."
| :? OverflowException ->
    printfn $"'{stringToConvert}' is out of range of the Int16 data type."

// The example displays the following output to the console:
//       Converted ' 214 ' to 214.
//       Unable to parse ' + 214'.
//       Converted ' +214 ' to 214.

Dim stringToConvert As String
Dim number As Short

stringToConvert = " 214 "
Try
   number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture)
   Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, number)
Catch e As FormatException
   Console.WriteLine("Unable to parse '{0}'.", stringToConvert)
Catch e As OverflowException
   Console.WriteLine("'{0'} is out of range of the Int16 data type.", _
                     stringToConvert)
End Try

stringToConvert = " + 214"                                 
Try
   number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture)
   Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, number)
Catch e As FormatException
   Console.WriteLine("Unable to parse '{0}'.", stringToConvert)
Catch e As OverflowException
   Console.WriteLine("'{0'} is out of range of the Int16 data type.", _
                     stringToConvert)
End Try

stringToConvert = " +214 " 
Try
   number = Int16.Parse(stringToConvert, CultureInfo.InvariantCulture)
   Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, number)
Catch e As FormatException
   Console.WriteLine("Unable to parse '{0}'.", stringToConvert)
Catch e As OverflowException
   Console.WriteLine("'{0'} is out of range of the Int16 data type.", _
                     stringToConvert)
End Try
' The example displays the following output to the console:
'       Converted ' 214 ' to 214.
'       Unable to parse ' + 214'.
'       Converted ' +214 ' to 214.

Hinweise

Der s Parameter enthält eine Nummer des Formulars:

[ws] [Sign]digits[ws]

Elemente in eckigen Klammern ([ und ]) sind optional. In der folgenden Tabelle wird jedes Element beschrieben.

Der s Parameter wird mithilfe des Stils NumberStyles.Integer interpretiert. Neben Dezimalstellen sind in snur führende und nachfolgende Leerzeichen zusammen mit einem führenden Zeichen zulässig. Verwenden Sie die -Methode, um die Stilelemente explizit zusammen mit den kulturspezifischen Formatierungsinformationen zu definieren, die Int16.Parse(String, NumberStyles, IFormatProvider) in svorhanden sein können.

Der provider Parameter ist eine IFormatProvider Implementierung, die ein NumberFormatInfo -Objekt abruft. stellt NumberFormatInfo kulturspezifische Informationen zum Format von bereit s. Wenn provider ist null, wird für NumberFormatInfo die aktuelle Kultur verwendet.

Weitere Informationen

• ToString()
• TryParse
• Analysieren numerischer Zeichenfolgen in .NET

Source:

Int16.cs

Source:

Int16.cs

Source:

Int16.cs

public:
 static short Parse(System::String ^ s);

public static short Parse (string s);

static member Parse : string -> int16

Public Shared Function Parse (s As String) As Short

Parameter

Gibt zurück

Eine 16-Bit-Ganzzahl mit Vorzeichen, die der Zahl in s entspricht.

Ausnahmen

Beispiele

Im folgenden Beispiel wird veranschaulicht, wie ein Zeichenfolgenwert mithilfe der Int16.Parse(String) -Methode in einen 16-Bit-Ganzzahlwert mit Vorzeichen konvertiert wird. Der resultierende ganzzahlige Wert wird dann in der Konsole angezeigt.

String^ value;
Int16 number;
   
value = " 12603 ";
try
{
   number = Int16::Parse(value);
   Console::WriteLine("Converted '{0}' to {1}.", value, number);
}
catch (FormatException ^e)
{
   Console::WriteLine("Unable to convert '{0}' to a 16-bit signed integer.", 
                      value);
}
   
value = " 16,054";
try
{
   number = Int16::Parse(value);
   Console::WriteLine("Converted '{0}' to {1}.", value, number);
}
catch (FormatException ^e)
{
   Console::WriteLine("Unable to convert '{0}' to a 16-bit signed integer.", 
                     value);
}
                           
value = " -17264";
try
{
   number = Int16::Parse(value);
   Console::WriteLine("Converted '{0}' to {1}.", value, number);
}
catch (FormatException ^e)
{
   Console::WriteLine("Unable to convert '{0}' to a 16-bit signed integer.", 
                      value);
}
// The example displays the following output to the console:
//       Converted ' 12603 ' to 12603.
//       Unable to convert ' 16,054' to a 16-bit signed integer.
//       Converted ' -17264' to -17264.

string value;
short number;

value = " 12603 ";
try
{
   number = Int16.Parse(value);
   Console.WriteLine("Converted '{0}' to {1}.", value, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to convert '{0}' to a 16-bit signed integer.",
                     value);
}

value = " 16,054";
try
{
   number = Int16.Parse(value);
   Console.WriteLine("Converted '{0}' to {1}.", value, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to convert '{0}' to a 16-bit signed integer.",
                     value);
}

value = " -17264";
try
{
   number = Int16.Parse(value);
   Console.WriteLine("Converted '{0}' to {1}.", value, number);
}
catch (FormatException)
{
   Console.WriteLine("Unable to convert '{0}' to a 16-bit signed integer.",
                     value);
}
// The example displays the following output to the console:
//       Converted ' 12603 ' to 12603.
//       Unable to convert ' 16,054' to a 16-bit signed integer.
//       Converted ' -17264' to -17264.

let value = " 12603 "
try
    let number = Int16.Parse value
    printfn $"Converted '{value}' to {number}." 
with :? FormatException -> 
    printfn $"Unable to convert '{value}' to a 16-bit signed integer."

let value = " 16,054"
try
    let number = Int16.Parse value
    printfn $"Converted '{value}' to {number}."
with :? FormatException ->
    printfn "Unable to convert '{value}' to a 16-bit signed integer."
                    
let value = " -17264"
try
    let number = Int16.Parse value
    printfn $"Converted '{value}' to {number}."
with :? FormatException ->
    printfn "Unable to convert '{value}' to a 16-bit signed integer."
    

// The example displays the following output to the console:
//       Converted ' 12603 ' to 12603.
//       Unable to convert ' 16,054' to a 16-bit signed integer.
//       Converted ' -17264' to -17264.

Dim value As String
Dim number As Short

value = " 12603 "
Try
   number = Short.Parse(value)
   Console.WriteLine("Converted '{0}' to {1}.", value, number)
Catch e As FormatException
   Console.WriteLine("Unable to convert '{0}' to a 16-bit signed integer.", _
                     value)
End Try

value = " 16,054"
Try
   number = Short.Parse(value)
   Console.WriteLine("Converted '{0}' to {1}.", value, number)
Catch e As FormatException
   Console.WriteLine("Unable to convert '{0}' to a 16-bit signed integer.", _
                     value)
End Try
                        
value = " -17264"
Try
   number = Short.Parse(value)
   Console.WriteLine("Converted '{0}' to {1}.", value, number)
Catch e As FormatException
   Console.WriteLine("Unable to convert '{0}' to a 16-bit signed integer.", _
                     value)
End Try
' The example displays the following output to the console:
'       Converted ' 12603 ' to 12603.
'       Unable to convert ' 16,054' to a 16-bit signed integer.
'       Converted ' -17264' to -17264.

Hinweise

Der s Parameter enthält eine Nummer des Formulars:

[ws] [Sign]digits[ws]

Elemente in eckigen Klammern ([ und ]) sind optional. In der folgenden Tabelle wird jedes Element beschrieben.

Der s Parameter wird mithilfe des Stils NumberStyles.Integer interpretiert. Zusätzlich zu den Dezimalstellen des ganzzahligen Werts sind nur führende und nachfolgende Leerzeichen zusammen mit einem führenden Zeichen zulässig. Um explizit die Stilelemente zu definieren, die in svorhanden sein können, verwenden Sie entweder die Int16.Parse(String, NumberStyles) -Methode oder die Parse -Methode.

Der s Parameter wird mithilfe der Formatierungsinformationen in einem NumberFormatInfo Objekt analysiert, das für die aktuelle Systemkultur initialisiert wird. Weitere Informationen finden Sie unter CurrentInfo. Um eine Zeichenfolge mithilfe der Formatierungsinformationen einer anderen Kultur zu analysieren, verwenden Sie die Int16.Parse(String, IFormatProvider) - oder - Int16.Parse(String, NumberStyles, IFormatProvider) Methode.

Weitere Informationen

• ToString()
• Analysieren numerischer Zeichenfolgen in .NET

Source:

Int16.cs

Source:

Int16.cs

Source:

Int16.cs

public:
 static short Parse(ReadOnlySpan<char> s, IFormatProvider ^ provider) = ISpanParsable<short>::Parse;

public static short Parse (ReadOnlySpan<char> s, IFormatProvider? provider);

static member Parse : ReadOnlySpan<char> * IFormatProvider -> int16

Public Shared Function Parse (s As ReadOnlySpan(Of Char), provider As IFormatProvider) As Short

Parameter

Gibt zurück

Das Ergebnis der Analyse svon .

Implementiert

Source:

Int16.cs

Source:

Int16.cs

public:
 static short Parse(ReadOnlySpan<System::Byte> utf8Text, IFormatProvider ^ provider) = IUtf8SpanParsable<short>::Parse;

public static short Parse (ReadOnlySpan<byte> utf8Text, IFormatProvider? provider);

static member Parse : ReadOnlySpan<byte> * IFormatProvider -> int16

Public Shared Function Parse (utf8Text As ReadOnlySpan(Of Byte), provider As IFormatProvider) As Short

Parameter

Gibt zurück

Das Ergebnis der Analyse utf8Textvon .

Implementiert

Source:

Int16.cs

Source:

Int16.cs

Source:

Int16.cs

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

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

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

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

Parameter

Gibt zurück

Eine 16-Bit-Ganzzahl mit Vorzeichen, die der Zahl in s entspricht.

Ausnahmen

Beispiele

Im folgenden Beispiel wird die Int16.Parse(String, NumberStyles) -Methode verwendet, um die Zeichenfolgendarstellungen von Int16 Werten mithilfe der en-US-Kultur zu analysieren.

using namespace System;
using namespace System::Globalization;

ref class ParseSample
{
public:
   static void Main()
   {
      String^ value;
      NumberStyles style;

      // Parse a number with a thousands separator (throws an exception).
      value = "14,644";
      style = NumberStyles::None;
      ParseSample::ParseToInt16(value, style);
      
      style = NumberStyles::AllowThousands;
      ParseToInt16(value, style);
      
      // Parse a number with a thousands separator and decimal point.
      value = "14,644.00";
      style = NumberStyles::AllowThousands | NumberStyles::Integer |
              NumberStyles::AllowDecimalPoint;
      ParseToInt16(value, style);
      
      // Parse a number with a fractional component (throws an exception).
      value = "14,644.001";
      ParseToInt16(value, style);
      
      // Parse a number in exponential notation.
      value = "145E02";
      style = style | NumberStyles::AllowExponent;
      ParseToInt16(value, style);
      
      // Parse a number in exponential notation with a positive sign.
      value = "145E+02";
      ParseToInt16(value, style);
      
      // Parse a number in exponential notation with a negative sign
      // (throws an exception).
      value = "145E-02";
      ParseToInt16(value, style);
   }

private:
   static void ParseToInt16(String^ value, NumberStyles style)
   {
      try
      {
         Int16 number = Int16::Parse(value, style);
         Console::WriteLine("Converted '{0}' to {1}.", value, number);
      }
      catch (FormatException ^e)
      {
         Console::WriteLine("Unable to parse '{0}' with style {1}.", value, 
                            style);
      }
      catch (OverflowException ^e)
      {
         Console::WriteLine("'{0}' is out of range of the Int16 type.", value);
      }
   }
};

int main()
{
    ParseSample::Main();
    Console::ReadLine();
    return 0;
}
// The example displays the following output:
//       Unable to parse '14,644' with style None.
//       Converted '14,644' to 14644.
//       Converted '14,644.00' to 14644.
//       '14,644.001' is out of range of the Int16 type.
//       Converted '145E02' to 14500.
//       Converted '145E+02' to 14500.
//       '145E-02' is out of range of the Int16 type.

using System;
using System.Globalization;

public class ParseSample
{
   public static void Main()
   {
      string value;
      NumberStyles style;

      // Parse a number with a thousands separator (throws an exception).
      value = "14,644";
      style = NumberStyles.None;
      ParseToInt16(value, style);

      style = NumberStyles.AllowThousands;
      ParseToInt16(value, style);

      // Parse a number with a thousands separator and decimal point.
      value = "14,644.00";
      style = NumberStyles.AllowThousands | NumberStyles.Integer |
              NumberStyles.AllowDecimalPoint;
      ParseToInt16(value, style);

      // Parse a number with a fractional component (throws an exception).
      value = "14,644.001";
      ParseToInt16(value, style);

      // Parse a number in exponential notation.
      value = "145E02";
      style = style | NumberStyles.AllowExponent;
      ParseToInt16(value, style);

      // Parse a number in exponential notation with a positive sign.
      value = "145E+02";
      ParseToInt16(value, style);

      // Parse a number in exponential notation with a negative sign
      // (throws an exception).
      value = "145E-02";
      ParseToInt16(value, style);
   }

   private static void ParseToInt16(string value, NumberStyles style)
   {
      try
      {
         short number = Int16.Parse(value, style);
         Console.WriteLine("Converted '{0}' to {1}.", value, number);
      }
      catch (FormatException)
      {
         Console.WriteLine("Unable to parse '{0}' with style {1}.", value,
                           style.ToString());
      }
      catch (OverflowException)
      {
         Console.WriteLine("'{0}' is out of range of the Int16 type.", value);
      }
   }
}
// The example displays the following output to the console:
//       Unable to parse '14,644' with style None.
//       Converted '14,644' to 14644.
//       Converted '14,644.00' to 14644.
//       '14,644.001' is out of range of the Int16 type.
//       Converted '145E02' to 14500.
//       Converted '145E+02' to 14500.
//       '145E-02' is out of range of the Int16 type.

open System
open System.Globalization

let parseToInt16 (value: string) (style: NumberStyles) =
    try
        let number = Int16.Parse(value, style)
        printfn $"Converted '{value}' to {number}."
    with
    | :? FormatException ->
        printfn $"Unable to parse '{value}' with style {style}."
    | :? OverflowException ->
        printfn $"'{value}' is out of range of the Int16 type."

[<EntryPoint>]
let main _ =
    // Parse a number with a thousands separator (throws an exception).
    let value = "14,644"
    let style = NumberStyles.None
    parseToInt16 value style

    let style = NumberStyles.AllowThousands
    parseToInt16 value style

    // Parse a number with a thousands separator and decimal point.
    let value = "14,644.00"
    let style = NumberStyles.AllowThousands ||| NumberStyles.Integer ||| NumberStyles.AllowDecimalPoint
    parseToInt16 value style

    // Parse a number with a fractional component (throws an exception).
    let value = "14,644.001"
    parseToInt16 value style

    // Parse a number in exponential notation.
    let value = "145E02"
    let style = style ||| NumberStyles.AllowExponent
    parseToInt16 value style

    // Parse a number in exponential notation with a positive sign.
    let value = "145E+02"
    parseToInt16 value style

    // Parse a number in exponential notation with a negative sign
    // (throws an exception).
    let value = "145E-02"
    parseToInt16 value style

    0

// The example displays the following output to the console:
//       Unable to parse '14,644' with style None.
//       Converted '14,644' to 14644.
//       Converted '14,644.00' to 14644.
//       '14,644.001' is out of range of the Int16 type.
//       Converted '145E02' to 14500.
//       Converted '145E+02' to 14500.
//       '145E-02' is out of range of the Int16 type.

Imports System.Globalization

Module ParseSample
   Public Sub Main()
      Dim value As String 
      Dim style As NumberStyles
      
      ' Parse a number with a thousands separator (throws an exception).
      value = "14,644"
      style = NumberStyles.None
      ParseToInt16(value, style)
      
      style = NumberStyles.AllowThousands
      ParseToInt16(value, style)
      
      ' Parse a number with a thousands separator and decimal point.
      value = "14,644.00"
      style = NumberStyles.AllowThousands Or NumberStyles.Integer Or _
              NumberStyles.AllowDecimalPoint
      ParseToInt16(value, style)
      
      ' Parse a number with a fractional component (throws an exception).
      value = "14,644.001"
      ParseToInt16(value, style)
      
      ' Parse a number in exponential notation.
      value = "145E02"
      style = style Or NumberStyles.AllowExponent
      ParseToInt16(value, style)
      
      ' Parse a number in exponential notation with a positive sign.
      value = "145E+02"
      ParseToInt16(value, style)
      
      ' Parse a number in exponential notation with a negative sign
      ' (throws an exception).
      value = "145E-02"
      ParseToInt16(value, style)
   End Sub
   
   Private Sub ParseToInt16(value As String, style As NumberStyles)
      Try
         Dim number As Short = Int16.Parse(value, style)
         Console.WriteLine("Converted '{0}' to {1}.", value, number)
      Catch e As FormatException
         Console.WriteLine("Unable to parse '{0}' with style {1}.", value, _
                           style.ToString())
      Catch e As OverflowException
         Console.WriteLine("'{0}' is out of range of the Int16 type.", value)
      End Try
   End Sub   
End Module
' The example displays the following output to the console:
'       Unable to parse '14,644' with style None.
'       Converted '14,644' to 14644.
'       Converted '14,644.00' to 14644.
'       '14,644.001' is out of range of the Int16 type.
'       Converted '145E02' to 14500.
'       Converted '145E+02' to 14500.
'       '145E-02' is out of range of the Int16 type.

Hinweise

Der style Parameter definiert die Stilelemente (z. B. Leerzeichen oder ein Zeichensymbol), die s im Parameter zulässig sind, damit der Analysevorgang erfolgreich ist. Es muss sich um eine Kombination von Bitflags aus der NumberStyles Enumeration handeln. Abhängig vom Wert von stylekann der s Parameter die folgenden Elemente enthalten:

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

Oder, wenn style enthält AllowHexSpecifier:

[ws]hexdigits[ws]

Elemente in eckigen Klammern ([ und ]) sind optional. In der folgenden Tabelle wird jedes Element beschrieben.

Eine Zeichenfolge nur mit Ziffern (die dem NumberStyles.None Format entspricht) analysiert immer erfolgreich. Die meisten der verbleibenden NumberStyles Member-Steuerelementelemente, die in dieser Eingabezeichenfolge möglicherweise vorhanden sein müssen, aber nicht erforderlich sind. Die folgende Tabelle gibt an, wie sich einzelne NumberStyles Member auf die Elemente auswirken, die möglicherweise in svorhanden sind.

Wenn das NumberStyles.AllowHexSpecifier Flag verwendet wird, s muss die Zeichenfolgendarstellung eines Hexadezimalwerts ohne Präfix sein. Beispielsweise analysiert "9AF3" erfolgreich, "0x9AF3" nicht. Die einzigen anderen Flags, die in style vorhanden sein können, sind NumberStyles.AllowLeadingWhite und NumberStyles.AllowTrailingWhite. (Die NumberStyles Enumeration weist eine zusammengesetzte Zahlenart auf, NumberStyles.HexNumberdie beide Leerzeichenflags enthält.)

Der s Parameter wird mithilfe der Formatierungsinformationen in einem NumberFormatInfo Objekt analysiert, das für die aktuelle Systemkultur initialisiert wird. Weitere Informationen finden Sie unter NumberFormatInfo.CurrentInfo. Um mithilfe der Formatierungsinformationen einer bestimmten Kultur zu analysieren s , rufen Sie die -Methode auf Int16.Parse(String, NumberStyles, IFormatProvider) .

Weitere Informationen

• NumberStyles
• ToString()
• TryParse
• Analysieren numerischer Zeichenfolgen in .NET