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Best way to parsing a negative number from a string in format ($200.00)

Posted on 2011-03-17
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Last Modified: 2012-05-11
What's the most concise method to "convert" a string ($200.00) to a double -200.00 in C#?
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Question by:dgerler
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6 Comments
 
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Accepted Solution

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wdosanjos earned 2000 total points
ID: 35158371
Try this:

double value = Double.Parse("($200.00)", System.Globalization.NumberStyles.Currency);
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LVL 8

Expert Comment

by:mac-will
ID: 35158378
String s = "$200.00";

s = s.Replace("$","");

double s_d = 0;

if(double.TryParse(s, out s_d))
{
     s_d *= -1; // make negative

     // do what you need with -200.0

}

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Author Closing Comment

by:dgerler
ID: 35158689
Very concise! Thank you.
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LVL 8

Expert Comment

by:mac-will
ID: 35158697
Don't forget to catch the exception if it's bad data otherwise use the tryparse method.
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Author Comment

by:dgerler
ID: 35158943
Yep. Was catching the exception in a general sense, but wanted a nice elegant and concise way rather than using several .replace() methods.
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LVL 8

Expert Comment

by:mac-will
ID: 35165390
No use ths original solution but with tryparse I mean.

Something like:

double value = 0;

if(Double.TryParse("($200.00)", System.Globalization.NumberStyles.Currency, out value))
{

}

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