Int16.Parse Method

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Converts the string representation of a number to its 16-bit signed integer equivalent.

Overloads

Parse(String, NumberStyles, IFormatProvider)	Converts the string representation of a number in a specified style and culture-specific format to its 16-bit signed integer equivalent.
Parse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider)	Converts the span representation of a number in a specified style and culture-specific format to its 16-bit signed integer equivalent.
Parse(ReadOnlySpan<Byte>, NumberStyles, IFormatProvider)	Parses a span of UTF-8 characters into a value.
Parse(String, IFormatProvider)	Converts the string representation of a number in a specified culture-specific format to its 16-bit signed integer equivalent.
Parse(String)	Converts the string representation of a number to its 16-bit signed integer equivalent.
Parse(ReadOnlySpan<Char>, IFormatProvider)	Parses a span of characters into a value.
Parse(ReadOnlySpan<Byte>, IFormatProvider)	Parses a span of UTF-8 characters into a value.
Parse(String, NumberStyles)	Converts the string representation of a number in a specified style to its 16-bit signed integer equivalent.

Parse(String, NumberStyles, IFormatProvider)

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.

provider: IFormatProvider

An IFormatProvider that supplies culture-specific formatting information about s.

Returns

Int16

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

Implements

Parse(String, NumberStyles, IFormatProvider)

Exceptions

ArgumentNullException

s is null.

ArgumentException

style is not a NumberStyles value.

-or-

style is not a combination of AllowHexSpecifier and HexNumber values.

FormatException

s is not in a format compliant with style.

OverflowException

s represents a number less than Int16.MinValue or greater than Int16.MaxValue.

-or-

s includes non-zero fractional digits.

Examples

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

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.

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.

Element	Description
ws	Optional white space. White space can appear at the beginning of `s` if `style` includes the NumberStyles.AllowLeadingWhite flag, or at the end of `s` if `style` includes the NumberStyles.AllowTrailingWhite flag.
$	A culture-specific currency symbol. Its position in the string is defined by the NumberFormatInfo.CurrencyPositivePattern and NumberFormatInfo.CurrencyNegativePattern property of the current culture. The current culture's currency symbol can appear in `s` if `style` includes the NumberStyles.AllowCurrencySymbol flag.
sign	An optional sign. The sign can appear at the beginning of `s` if `style` includes the NumberStyles.AllowLeadingSign flag, and it can appear at the end of `s` if `style` includes the NumberStyles.AllowTrailingSign flag. Parentheses can be used in `s` to indicate a negative value if `style` includes the NumberStyles.AllowParentheses flag.
digits	A sequence of digits from 0 through 9.
,	A culture-specific thousands separator symbol. The current culture's thousands separator symbol can appear in `s` if `style` includes the NumberStyles.AllowThousands flag.
.	A culture-specific decimal point symbol. The current culture's decimal point symbol can appear in `s` if `style` includes the NumberStyles.AllowDecimalPoint flag.
fractional_digits	A sequence of the 0 digit. Fractional digits can appear in `s` if `style` includes the NumberStyles.AllowDecimalPoint flag. If any digit other than 0 appears in fractional_digits, the method throws an OverflowException.
e	The 'e' or 'E' character, which indicates that `s` can be represented in exponential notation. The `s` parameter can represent a number in exponential notation if `style` includes the NumberStyles.AllowExponent flag. However, the `s` parameter must represent a number in the range of the Int16 data type and cannot have a non-zero fractional component.
hexdigits	A sequence of hexadecimal digits from 0 through f, or 0 through F.

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.

Non-composite NumberStyles values	Elements permitted in s in addition to digits
NumberStyles.None	Decimal digits only.
NumberStyles.AllowDecimalPoint	The . and fractional_digits elements. However, fractional_digits must consist of only one or more 0 digits or an OverflowException is thrown.
NumberStyles.AllowExponent	The `s` parameter can also use exponential notation.
NumberStyles.AllowLeadingWhite	The ws element at the beginning of `s`.
NumberStyles.AllowTrailingWhite	The ws element at the end of `s`.
NumberStyles.AllowLeadingSign	A sign can appear before digits.
NumberStyles.AllowTrailingSign	A sign can appear after digits.
NumberStyles.AllowParentheses	The sign element in the form of parentheses enclosing the numeric value.
NumberStyles.AllowThousands	The , element.
NumberStyles.AllowCurrencySymbol	The $ element.

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.

Applies to

Parse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider)

Source:: Int16.cs

Source:: Int16.cs

Source:: Int16.cs

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

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

Parameters

s: ReadOnlySpan<Char>

A span containing the characters representing the 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.

provider: IFormatProvider

An IFormatProvider that supplies culture-specific formatting information about s.

Returns

Int16

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

Implements

Parse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider)

Applies to

Parse(ReadOnlySpan<Byte>, NumberStyles, IFormatProvider)

Source:: Int16.cs

Source:: Int16.cs

Parses a span of UTF-8 characters into a value.

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

Parameters

utf8Text: ReadOnlySpan<Byte>

The span of UTF-8 characters to parse.

style: NumberStyles

A bitwise combination of number styles that can be present in utf8Text.

provider: IFormatProvider

An object that provides culture-specific formatting information about utf8Text.

Returns

Int16

The result of parsing utf8Text.

Implements

Parse(ReadOnlySpan<Byte>, NumberStyles, IFormatProvider)

Applies to

Parse(String, IFormatProvider)

Source:: Int16.cs

Source:: Int16.cs

Source:: Int16.cs

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

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

Parameters

s: String

A string containing a number to convert.

provider: IFormatProvider

An IFormatProvider that supplies culture-specific formatting information about s.

Returns

Int16

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

Implements

Parse(String, IFormatProvider)

Exceptions

ArgumentNullException

s is null.

FormatException

s is not in the correct format.

OverflowException

s represents a number less than Int16.MinValue or greater than Int16.MaxValue.

Examples

The following example parses string representations of Int16 values with the Int16.Parse(String, IFormatProvider) method.

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.

Remarks

The s parameter contains a number of the form:

[ws][sign]digits[ws]

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

Element	Description
ws	An optional white space.
sign	An optional sign.
digits	A sequence of digits ranging from 0 to 9.

The s parameter is interpreted using the NumberStyles.Integer style. In addition to decimal digits, only leading and trailing spaces together with a leading sign are allowed in s. To explicitly define the style elements together with the culture-specific formatting information that can be present in s, use the Int16.Parse(String, NumberStyles, IFormatProvider) method.

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

Applies to

Parse(String)

Source:: Int16.cs

Source:: Int16.cs

Source:: Int16.cs

Converts the string representation of a number to its 16-bit signed integer equivalent.

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

Parameters

s: String

A string containing a number to convert.

Returns

Int16

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

Exceptions

ArgumentNullException

s is null.

FormatException

s is not in the correct format.

OverflowException

s represents a number less than Int16.MinValue or greater than Int16.MaxValue.

Examples

The following example demonstrates how to convert a string value into a 16-bit signed integer value using the Int16.Parse(String) method. The resulting integer value is then displayed to the console.

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.

Remarks

The s parameter contains a number of the form:

[ws][sign]digits[ws]

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

Element	Description
ws	Optional white space.
sign	An optional sign.
digits	A sequence of digits ranging from 0 to 9.

The s parameter is interpreted using the NumberStyles.Integer style. In addition to the integer value's decimal digits, only leading and trailing spaces together with a leading sign are allowed. To explicitly define the style elements that can be present in s, use either the Int16.Parse(String, NumberStyles) or the Parse method.

The s parameter is parsed using the formatting information in a NumberFormatInfo object that is initialized for the current system culture. For more information, see CurrentInfo. To parse a string using the formatting information of some other culture, use the Int16.Parse(String, IFormatProvider) or the Int16.Parse(String, NumberStyles, IFormatProvider) method.

Applies to

Parse(ReadOnlySpan<Char>, IFormatProvider)

Source:: Int16.cs

Source:: Int16.cs

Source:: Int16.cs

Parses a span of characters into a value.

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

Parameters

s: ReadOnlySpan<Char>

The span of characters to parse.

provider: IFormatProvider

An object that provides culture-specific formatting information about s.

Returns

Int16

The result of parsing s.

Implements

Parse(ReadOnlySpan<Char>, IFormatProvider)

Applies to

Parse(ReadOnlySpan<Byte>, IFormatProvider)

Source:: Int16.cs

Source:: Int16.cs

Parses a span of UTF-8 characters into a value.

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

Parameters

utf8Text: ReadOnlySpan<Byte>

The span of UTF-8 characters to parse.

provider: IFormatProvider

An object that provides culture-specific formatting information about utf8Text.

Returns

Int16

The result of parsing utf8Text.

Implements

Parse(ReadOnlySpan<Byte>, IFormatProvider)

Applies to

Parse(String, NumberStyles)

Source:: Int16.cs

Source:: Int16.cs

Source:: Int16.cs

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

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

Parameters

s: String

A string containing a number to convert.

style: NumberStyles

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

Returns

Int16

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

Exceptions

ArgumentNullException

s is null.

ArgumentException

style is not a NumberStyles value.

-or-

style is not a combination of AllowHexSpecifier and HexNumber values.

FormatException

s is not in a format compliant with style.

OverflowException

s represents a number less than Int16.MinValue or greater than Int16.MaxValue.

-or-

s includes non-zero fractional digits.

Examples

The following example uses the Int16.Parse(String, NumberStyles) method to parse the string representations of Int16 values using the en-US culture.

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.

Remarks

The style parameter defines the style elements (such as white space or a sign symbol) 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]

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

Element	Description
ws	Optional white space. White space can appear at the beginning of `s` if `style` includes the NumberStyles.AllowLeadingWhite flag, or at the end of `s` if `style` includes the NumberStyles.AllowTrailingWhite flag.
$	A culture-specific currency symbol. Its position in the string is defined by the NumberFormatInfo.CurrencyPositivePattern and NumberFormatInfo.CurrencyNegativePattern property of the current culture. The current culture's currency symbol can appear in `s` if `style` includes the NumberStyles.AllowCurrencySymbol flag.
sign	An optional sign. The sign can appear at the beginning of `s` if `style` includes the NumberStyles.AllowLeadingSign flag, and it can appear at the end of `s` if `style` includes the NumberStyles.AllowTrailingSign flag. Parentheses can be used in `s` to indicate a negative value if `style` includes the NumberStyles.AllowParentheses flag.
digits	A sequence of digits from 0 through 9.
,	A culture-specific thousands separator symbol. The current culture's thousands separator symbol can appear in `s` if `style` includes the NumberStyles.AllowThousands flag.
.	A culture-specific decimal point symbol. The current culture's decimal point symbol can appear in `s` if `style` includes the NumberStyles.AllowDecimalPoint flag.
fractional_digits	A sequence of the 0 digit. Fractional digits can appear in `s` if `style` includes the NumberStyles.AllowDecimalPoint flag. If any digit other than 0 appears in fractional_digits, the method throws an OverflowException.
e	The 'e' or 'E' character, which indicates that `s` can be represented in exponential notation. The `s` parameter can represent a number in exponential notation if `style` includes the NumberStyles.AllowExponent flag. However, the `s` parameter must represent a number in the range of the Int16 data type and cannot have a non-zero fractional component.
hexdigits	A sequence of hexadecimal digits from 0 through f, or 0 through F.

Note

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

Non-composite NumberStyles values	Elements permitted in s in addition to digits
NumberStyles.None	Decimal digits only.
NumberStyles.AllowDecimalPoint	The . and fractional_digits elements. However, fractional_digits must consist of only one or more 0 digits or an OverflowException is thrown.
NumberStyles.AllowExponent	The `s` parameter can also use exponential notation.
NumberStyles.AllowLeadingWhite	The ws element at the beginning of `s`.
NumberStyles.AllowTrailingWhite	The ws element at the end of `s`.
NumberStyles.AllowLeadingSign	A sign can appear before digits.
NumberStyles.AllowTrailingSign	A sign can appear after digits.
NumberStyles.AllowParentheses	The sign element in the form of parentheses enclosing the numeric value.
NumberStyles.AllowThousands	The , element.
NumberStyles.AllowCurrencySymbol	The $ element.

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 s parameter is parsed using the formatting information in a NumberFormatInfo object that is initialized for the current system culture. For more information, see NumberFormatInfo.CurrentInfo. To parse s using the formatting information of a specific culture, call the Int16.Parse(String, NumberStyles, IFormatProvider) method.

Applies to

Поділитися через

Int16.Parse Method

Definition

Overloads

Parse(String, NumberStyles, IFormatProvider)

Parameters

Returns

Implements

Exceptions

Examples

Remarks

See also

Applies to

Parse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider)

Parameters

Returns

Implements

Applies to

Parse(ReadOnlySpan<Byte>, NumberStyles, IFormatProvider)

Parameters

Returns

Implements

Applies to

Parse(String, IFormatProvider)

Parameters

Returns

Implements

Exceptions

Examples

Remarks

See also

Applies to

Parse(String)

Parameters

Returns

Exceptions

Examples

Remarks

See also

Applies to

Parse(ReadOnlySpan<Char>, IFormatProvider)

Parameters

Returns

Implements

Applies to

Parse(ReadOnlySpan<Byte>, IFormatProvider)

Parameters

Returns

Implements

Applies to

Parse(String, NumberStyles)

Parameters

Returns

Exceptions

Examples

Remarks

See also

Applies to

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