C# 0 The Complete Reference

PART II

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629

public static double

     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 

double

 value, an exception is thrown.

public static double

     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 

double

 value, an exception is thrown.

public static double

     Parse(string 

str

,

               NumberStyles 

styles

,

               IFormatProvider 

fmtpvdr

)

Returns the binary 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 

double

 value, an exception is thrown.

public override string ToString( )

Returns the string representation of the value of 

the invoking object in the default format.

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 double

 val

)

Attempts to conver t the numeric string in 

str

 into 

a

double

 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. 

public static bool Tr yParse(string 

str

,

                          NumberStyles 

styles,

IFormatProvider 

fmtpvdr,

                          out double 

val

)

Attempts to conver t the numeric string in 

str

into a 

double

 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. 

Method

Meaning

T

ABLE

 21-5 

Methods Suppor ted by 

Double

(continued)

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