Format method

  • Thread starter Thread starter mp
  • Start date Start date
M

mp

Trying to use the format method in vb.net
to oconvert a double to string of 4 places

I tried:
Format(CStr(dHeightOfStone), "x.xxxx")

and:

Format(CStr(dHeightOfStone), "#.####")

It returns "x.xxxx" or "#.####" instead of "36.1875" (or whatever number was
input)

any tips?

thanks mark
 
Am 17.03.2010 23:56, schrieb mp:
Trying to use the format method in vb.net
to oconvert a double to string of 4 places

I tried:
Format(CStr(dHeightOfStone), "x.xxxx")

and:

Format(CStr(dHeightOfStone), "#.####")

It returns "x.xxxx" or "#.####" instead of "36.1875" (or whatever number was
input)

any tips?
Click to expand...

These format strings are for formatting numbers. You are trying
to format strings because, before, you've converted the numbers
to strings using the CStr function. Try this instead:

dHeightOfStone.ToString("#.####")
 
Trying to use the format method in vb.net
to oconvert a double to string of 4 places

I tried:
Format(CStr(dHeightOfStone), "x.xxxx")

and:

Format(CStr(dHeightOfStone), "#.####")

It returns "x.xxxx" or "#.####" instead of "36.1875" (or whatever number was
input)

any tips?

thanks mark
Click to expand...

I believe you want to use Format(dHeightOfStone, "#.####").

Frankly, I prefer dHeightOfStone.ToString("f4"), but that's just my style...
 
ok, even though the help files show the order i first tried,
Format(CStr(dHeightOfStone), "#.####") i tried the opposite order
Format( "#.####", CStr(dHeightOfStone))
Click to expand...
now instead of getting "#.####" returned, i get
4.62500000000364

so it's still not formatting
what am i missing?

as an alternative i tried using round
Dim sWidthLiner As String =
CStr(Decimal.Round(Cdec(dLengthOfMoldSidesLiner), 4))

but it seems a long way around to just get a double rounded to x places and
converted to string

thanks
mark
 
Thanks Mike and Armin,

Family Tree Mike said:
I believe you want to use Format(dHeightOfStone, "#.####").

Frankly, I prefer dHeightOfStone.ToString("f4"), but that's just my
style...
Click to expand...
 
ok, even though the help files show the order i first tried,
now instead of getting "#.####" returned, i get
4.62500000000364

so it's still not formatting
what am i missing?

as an alternative i tried using round
Dim sWidthLiner As String =
CStr(Decimal.Round(Cdec(dLengthOfMoldSidesLiner), 4))

but it seems a long way around to just get a double rounded to x places and
converted to string

thanks
mark
Click to expand...

Mark,

Did you not see Armin's and my responses?

You can use:

1. dHeightOfStone.ToString("#.####")
2. Format(dHeightOfStone, "#.####")
3. dHeightOfStone.ToString("f4")

but none of what you have posted will work. You need a number as the
first argument and a format string as the second. Turn "Option Strict
On" at the top of your code. You should get an error on some of the
things you are trying.
 
Thanks Mike,
They came in after i posted my second stupid effort
:-)
dumb newbie
:-)
Thanks for the info
I've gone with your favorite dHeightOfStone.ToString("f4")
nice and concise

mark
 
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