string format number of leading 0 in exponent in scientific notation

25 Sep 2006 7:14 AM

Robert Ludig

When I format a number to a string in scientific notation:

string.Format("{0:E}",20000);

I get the following string (culture de-DE):

2,000000E+003

How can I format scientific notation in a way that no leading 00 are
inserted for the exponent, so the above would look like this:

2,000000E+3

25 Sep 2006 2:44 PM

Christof Nordiek

you can use the following:

string.Format("{0:0.00000000E+0}",20000);

hth

Show quote

"Robert Ludig" <schwertfischtromb***@gmx.de> schrieb im Newsbeitrag
news:1159168462.395579.129330@i3g2000cwc.googlegroups.com...
> When I format a number to a string in scientific notation:
>
> string.Format("{0:E}",20000);
>
> I get the following string (culture de-DE):
>
> 2,000000E+003
>
> How can I format scientific notation in a way that no leading 00 are
> inserted for the exponent, so the above would look like this:
>
> 2,000000E+3
>

25 Sep 2006 3:57 PM

bonk

This way I would have to specify the precision in the formatstring. If
I wanted to dynamically adjust the precision I would always have to
build a "0.000000" string with the amount of "0"s representing the
precision I want. I find that somewhat odd and it cutters the code. Is
there another, more convienient way to achieve the desired effect.
Maybe something like

string.Format("{0:8E+0}",20000); // doesn't work, but is there a
similar syntax ?

Christof Nordiek schrieb:

Show quote

> you can use the following:
>
> string.Format("{0:0.00000000E+0}",20000);
>
> hth
>
> "Robert Ludig" <schwertfischtromb***@gmx.de> schrieb im Newsbeitrag
> news:1159168462.395579.129330@i3g2000cwc.googlegroups.com...
> > When I format a number to a string in scientific notation:
> >
> > string.Format("{0:E}",20000);
> >
> > I get the following string (culture de-DE):
> >
> > 2,000000E+003
> >
> > How can I format scientific notation in a way that no leading 00 are
> > inserted for the exponent, so the above would look like this:
> >
> > 2,000000E+3
> >