There really isn't any formatting within a strong, beyond it's alignment. Alignment works for any argument being printed in a String.Format call.
Sample
Generates
String.Format("->{1,10}<-", "Hello");
-> Hello<-
String.Format("->{1,-10}<-", "Hello");
->Hello <-
Numbers
Basic number formatting specifiers:
Specifier
Type
Format
Output (Passed Double 1.42)
Output (Passed Int -12400)
c
Currency
{0:c}
＄1.42
-＄12,400
d
Decimal (Whole number)
{0:d}
System. FormatException
-12400
e
Scientific
{0:e}
1.420000e+000
-1.240000e+004
f
Fixed point
{0:f}
1.42
-12400.00
g
General
{0:g}
1.42
-12400
n
Number with commas for thousands
{0:n}
1.42
-12,400
r
Round trippable
{0:r}
1.42
System. FormatException
x
Hexadecimal
{0:x4}
System. FormatException
cf90
Custom number formatting:
Specifier
Type
Example
Output (Passed Double 1500.42)
Note
0
Zero placeholder
{0:00.0000}
1500.4200
Pads with zeroes.
#
Digit placeholder
{0:(#).##}
(1500).42
.
Decimal point
{0:0.0}
1500.4
,
Thousand separator
{0:0,0}
1,500
Must be between two zeroes.
,.
Number scaling
{0:0,.}
2
Comma adjacent to Period scales by 1000.
%
Percent
{0:0%}
150042%
Multiplies by 100, adds % sign.
e
Exponent placeholder
{0:00e+0}
15e+2
Many exponent formats available.
;
Group separator
see below
The group separator is especially useful for formatting currency values which require that negative values be enclosed in parentheses. This currency formatting example at the bottom of this document makes it obvious:
Dates
Note that date formatting is especially dependant on the system's regional settings; the example strings here are from my local locale.
Specifier
Type
Example (Passed System.DateTime.Now)
d
Short date
10/12/2002
D
Long date
December 10, 2002
t
Short time
10:11 PM
T
Long time
10:11:29 PM
f
Full date & time
December 10, 2002 10:11 PM
F
Full date & time (long)
December 10, 2002 10:11:29 PM
g
Default date & time
10/12/2002 10:11 PM
G
Default date & time (long)
10/12/2002 10:11:29 PM
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, 2002 3:13:50 AM
Y
Year month pattern
December, 2002
The 'U' specifier seems broken; that string certainly isn't sortable.
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