String. Format () of C ()

This is often used to format strings of dates and numbers, so we sorted out some of the help items here.

The following table describes the standard format specifiers used to format datetime objects.
Format description
D short date mode
D. Long date mode
T short time mode
T long time mode
F full date/time mode (Short Time)
F full date/time mode (long time)
G regular date/time mode (Short Time)
G regular date/time mode (long time)

C # format the value result table

Character	Description	Example	Output
C	Currency	String. Format("{0: C3}", 2)	$2.000
D	Decimal	String. Format("{0: D3}", 2)	002
E	Scientific notation	1.20e + 001	1.20e + 001
G	General	String. Format("{0: g}", 2)	2
N	Number separated by semicolons	String. Format("{0: n}", 250000)	250,000.00
X	Hexadecimal	String. Format("{0: x000}", 12)	C
		String. Format("{0. 000}", 12.2)	012.200

Specifier	Type	Example (passed system. datetime. Now)
D	Short date	10/12/2002
D	Long date	December 10,200 2
T	Short Time	10: 11 pm
T	Long time	10:11:29
F	Full Date & time	December 10,200 2 pm
F	Full Date & time (long)	December 10,200 2 10:11:29
G	Default Date & time	10/12/2002 pm
G	Default Date & time (long)	10/12/2002 10:11:29
M	Month day Pattern	December 10
R	Rfc1123 date string	Tue, 10 Dec 2002 22:11:29 GMT
S	Sortable date string	2002-12-10t22: 11: 29
U	Universal sortable, local time	2002-12-10 22: 13: 50z
U	Universal sortable, GMT	December 11,200 2 3:13:50 AM
Y	Year month pattern	December 2002

Custom date formatting:

 

Specifier	Type	Example	Example output
Dd	Day	{0: dd}	10
Ddd	Day name	{0: DDD}	Tue
Dddd	Full day name	{0: dddd}	Tuesday
F, FF ,...	Second Fractions	{0: fff}	932
GG ,...	Era	{0: Gg}	A.D.
HH	2 digit hour	{0: hh}	10
HH	2 digit hour, 24hr format	{0: hh}	22
Mm	Minute 00-59	{0: mm}	38
Mm	Month 01-12	{0: mm}	12
Mmm	Month abbreviation	{0: Mmm}	Dec
Mmmm	Full month name	{0: Mmmm}	December
SS	Seconds 00-59	{0: SS}	46
TT	AM or PM	{0: TT}	PM
YY	Year, 2 digits	{0: yy}	02
Yyyy	Year	{0: yyyy}	2002
Zz	Timezone offset, 2 digits	{0: ZZ}	-05
Zzz	Full timezone offset	{0: ZZZ}	-05:00
:	Separator	{0: hh: mm: SS}	10:43:20
/	Separator	{0: dd/mm/yyyy}	10/12/2002

String. Format Method

Replace each format item in the specified string with the text equivalent item of the value of the corresponding object.

Name	Description
String. Format (string, object)	StringReplace the format item with the text equivalent of the value of the specified object instance. Supported by. NET Compact framework.
String. Format (string, object [])	SpecifyStringTo replace the format items in the specified arrayObjectText equivalent of the Instance value. Supported by. NET Compact framework.
String. Format (iformatprovider, String, object [])	SpecifyStringTo replace the format items in the specified arrayObjectText equivalent of the Instance value. The specified parameter specifies the format of the region. Supported by. NET Compact framework.
String. Format (string, object, object)	StringReplace the format items with two specifiedObjectText equivalent of the Instance value. Supported by. NET Compact framework.
String. Format (string, object)	StringReplace the format items with the three specifiedObjectText equivalent of the Instance value. Supported by. NET Compact framework.

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