String manipulation operation

Question

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I want to filter a string like this it may contain characters symbols etc

Amount 10.05 $

and i need an output like this contains a float value ( after eliminating the string and symbols except "." )

10.05

i tried the below code but it eliminate the decimal part also

<pre lang="c#">

key="!$%^ amount 10.05$";

  Regex.Replace(key, @"\D", "");

but it returns 10055

Posted 30-Aug-12 20:16pm

vishnulalr

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4 solutions

Solution 2

Use this

C#

//Convert the string to decimal or interger
       public static decimal GetNumbersfromstring(string param)
       {
           //for decimal
           string deci = string.Join(null, System.Text.RegularExpressions.Regex.Split(param, "[^.\\d]"));

           //for integer
           string inte = string.Join(null, System.Text.RegularExpressions.Regex.Split(param, "[^\\d]"));

           return Convert.ToDecimal(deci);
       }

Main program

C#

Console.WriteLine(GetNumbersfromstring("Amount 10.05 $"));

Output

10.05

If you find useful rate it.

Posted 30-Aug-12 20:30pm

Prabhakaran Soundarapandian

Updated 30-Aug-12 20:31pm

v2

Solution 3

Check this.

http://stackoverflow.com/questions/3575331/how-do-extract-decimal-number-from-string-in-c-sharp[^]

Posted 30-Aug-12 20:31pm

Santhosh Kumar Jayaraman

Solution 4

Hi vishnulalr,

Try using pattern I've demonstrated below:

C#

key="!$%^ amount 10.05$";

  Regex.Replace(key, @"[a-zA-Z $]","");

This will return you what you expected it to.

Hope this helps.

Happy Coding!
-Sunny.

Posted 30-Aug-12 20:32pm

Sunny_Kumar_

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**Zoltán Zörgő** · Accepted Answer · 2012-08-30T20:27:00

Solution 1

Use:

C#

string result = Regex.Replace(key, @"[^\d\.]", "");

Posted 30-Aug-12 20:27pm

Zoltán Zörgő

Comments

vishnulalr 31-Aug-12 2:34am

great it works thanks Zoltán Zörgő

Zoltán Zörgő 31-Aug-12 2:36am

You are welcome!