Parameters

format

A string containing a character that specifies the format of the returned string, optionally followed by a non-negative integer that specifies the precision of the number in the returned string .

provider

A IFormatProvider that supplies a System.Globalization.NumberFormatInfo instance containing culture-specific formatting information.

Returns

A string representation of the current instance formatted as specified by format. The string takes into account the information in the System.Globalization.NumberFormatInfo instance supplied by provider.

Exceptions

Type	Reason
FormatException	format is invalid.

Remarks

If provider is null or a System.Globalization.NumberFormatInfo cannot be obtained from provider , the formatting information for the current system culture is used.

If format is a null reference, the general format specifier "G" is used.

The following table lists the format characters that are valid for the double type.

Format Characters	Description
"C", "c"	Currency format.
"E", "e"	Exponential notation format.
"F", "f"	Fixed-point format.
"G", "g"	General format.
"N", "n"	Number format.
"P", "p"	Percent format.
"R", "r"	Round-trip format.

Note:

For a detailed description of formatting, see the IFormattable interface.

This method is implemented to support the IFormattable interface.

Requirements

Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0