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Focus ad un TextBox

Ciao a tutti e buon Ferragosto! (a chi nn lavora). Oggi un veloce tricks: a me è capitato di dover dare il focus ad un textbox ma non compare il cursore all'interno dello stesso.

La funzione più scontata sarebbe TextBox.Focus(). Invece quella che funziona meglio è TextBox.Select(). Provate e verificate voi stessi!

 

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Categories: vb.net | Tricks & Tips | windowsform
Posted by enrico on Saturday, August 15, 2009 12:47 PM
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Formattazione con String.Format

formatting strings

exampleoutput
String.Format("--{0,10}--", "test"); --      test--
String.Format("--{0,-10}--", "test"); --test      --

formatting numbers

specifiertypeformatoutput
(double 1.2345)		output
(int -12345)
c currency {0:c} £1.23 -£12,345.00
d decimal
(whole number)		 {0:d} System.FormatException -12345
e exponent / scientific {0:e} 1.234500e+000 -1.234500e+004
f fixed point {0:f} 1.23 -12345.00
g general {0:g} 1.2345 -12345
n number {0:n} 1.23 -12,345.00
r round trippable {0:r} 1.23 System.FormatException
x hexadecimal {0:x4} System.FormatException ffffcfc7

custom number formatting

specifiertypeformatoutput
(double 1234.56)
0 zero placeholder {0:00.000} 1234.560
# digit placeholder {0:#.##} 1234.56
. decimal point placeholder {0:0.0} 1234.6
, thousand separator {0:0,0} 1,235
% percentage {0:0%} 123456%

date formatting

specifiertypeoutput
(June 8, 1970 12:30:59)
d Short Date 08/06/1970
D Long Date 08 June 1970
t Short Time 12:30
T Long Time 12:30:59
f Full date and time 08 June 1970 12:30
F Full date and time (long) 08 June 1970 12:30:59
g Default date and time 08/06/1970 12:30
G Default date and time (long) 08/06/1970 12:30:59
M Day / Month 8 June
r RFC1123 date string Mon, 08 Jun 1970 12:30:59 GMT
s Sortable date/time 1970-06-08T12:30:59
u Universal time, local timezone 1970-06-08 12:30:59Z
Y Month / Year June 1970

custom date formatting

specifiertypeoutput
(June 8, 1970 12:30:59)
dd Day 08
ddd Short Day Name Mon
dddd Full Day Name Monday
hh 2 digit hour 12
HH 2 digit hour (24 hour) 12
mm 2 digit minute 30
MM Month 06
MMM Short Month name Jun
MMMM Month name June
ss seconds 59
tt AM/PM PM
yy 2 digit year 70
yyyy 4 digit year 1970
: seperator, e.g. {0:hh:mm:ss} 12:30:59
/ seperator, e.g. {0:dd/MM/yyyy} 08/06/1970

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Tags: , ,
Categories: asp.net | Generalità | vb.net
Posted by enrico on Friday, August 07, 2009 11:15 AM
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