C# 0 The Complete Reference

PART II

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625

public static 

retType

    Parse(string 

str

,

              IFormatProvider 

fmtpvdr

)

Returns the binar y equivalent of the numeric string 

in

str

 using the culture-specific information provided 

by

fmtpvdr.

 If the string does not represent a numeric 

value as defined by the structure type, an exception 

is thrown. 

retType

 is a placeholder for the actual type 

of data returned based on which numeric structure is 

used. For example, for 

Int32

,

retType

 will be 

int

.

public static 

retType

   Parse(string 

str

, NumberStyles 

styles

)

Returns the binar y equivalent of the numeric string 

in

str

 using the style information provided by 

styles.

If the string does not represent a numeric value as 

defined by the structure type, an exception is thrown. 

retType

 is a placeholder for the actual type of data 

returned based on which numeric structure is used. 

For example, for 

Int32

,

retType

 will be 

int

.

public static 

retType

    Parse(string 

str

, NumberStyles 

styles

,

              IFormatProvider 

fmtpvdr

)

Returns the binar y equivalent of the numeric string 

in

str

 using the style information provided by 

styles

and the culture-specific format information provided 

by

fmtpvdr.

 If the string does not represent a numeric 

value as defined by structure type, an exception is 

thrown. 

retType

 is a placeholder for the actual type 

of data returned based on which numeric structure is 

used. For example, for 

Int32

,

retType

 will be 

int

.

public override string ToString( )

Returns the string representation of the value of the 

invoking object.

public string ToString(string 

format

)

Returns the string representation of the value of 

the invoking object as specified by the format string 

passed in 

format.

public string

     ToString(IFormatProvider 

fmtpvdr

)

Returns the string representation of the value of the 

invoking object using the culture-specific information 

specified in 

fmtpvdr.

public string

     ToString(string 

format

,

                 IFormatProvider 

fmtpvdr

)

Returns the string representation of the value of the 

invoking object using the culture-specific information 

specified in 

fmtpvdr

 and the format specified by 

format.

public static bool Tr yParse(string 

str

,

                                       out 

type val

)

Attempts to conver t the numeric string in 

str

 into a 

binar y value. If successful, the value is stored in 

val

and true is returned. If no conversion takes place, 

false is returned. This differs from 

Parse( )

, which 

throws an exception on failure. In 

TryParse( )

,

type

explicitly specifies the data type, such as in 

System.Int32.TryParse(int 

v

)

.

Method

Meaning

T

ABLE

 21-2 

Methods Suppor ted by the Integer Structures 

(continued)

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public static bool Tr yParse(string 

str

,

                          NumberStyles 

styles

,

IFormatProvider 

fmtpvdr

,

                          out 

type val

)

Attempts to conver t the numeric string in 

str

 into a 

binar y value using the style information provided by 

styles

 and the culture-specific format information 

provided by 

fmtpvdr.

 If successful, the value is stored 

in

val

 and true is returned. If no conversion takes 

place, false is returned. This differs from 

Parse( )

,

which throws an exception on failure. In 

TryParse( )

,

type

 explicitly specifies the data type, such 

as in 

System.Int32.TryParse(int 

v

)

.

T

ABLE

 21-2 

Methods Suppor ted by the Integer Structures 

(continued)

Method

Meaning