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Format string (double) in C#.

Posted on 2010-11-18
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Last Modified: 2013-12-17
Normally, I use this way to format a string in C#:
MainBoardImportBOMFG.Text = String.Format("{0:#,###.##}", Convert.ToDouble(myReader["FinishedGoodBOM"]));

If myReader["FinishedGoodBOM"] has value > 0, Ex: myReader["FinishedGoodBOM"] = 20000
MainBoardImportBOMFG.Text = 20,000
---> It's correct

But if  myReader["FinishedGoodBOM"] = 0 --> MainBoardImportBOMFG.Text = (nothing)
I want to display MainBoardImportBOMFG.Text = 0 when myReader["FinishedGoodBOM"] = 0
How can I do?

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Question by:JameMeck
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2 Comments
 
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Accepted Solution

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Mathiyazhagan earned 2000 total points
ID: 34162716
use zero placeholder in your format string like :

            double dbl =10000;
            string ds =String.Format("{0:#,##0.00}", dbl);

if dbl = 1       then ds = 1.00
if dbl = 10     then ds = 10.00
if dbl = 100   then ds = 100.00
if dbl = 1000  then ds = 1,000.00
if dbl = 10000 then ds = 10,000.00
if dbl = 100000  then ds = 100,000.00
and if dbl = 0 then ds = 0.00

here we specifying # to custom holder and single 0 before . to display atleast one degit before .00
hope this helps
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Author Closing Comment

by:JameMeck
ID: 34170260
Thanks! It's a perfect solution.
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