C#

String sEarnings  = txtEarnings.Text;
           double earnings;

           //Use the System.Threading.Thread.CurrentThread.CurrentUICulture.NumberFormat
           //since the text box string data has the UI culture
           bool earningsParseOk = Double.TryParse(
               sEarnings, System.Globalization.NumberStyles.Any,
               System.Threading.Thread.CurrentThread.CurrentUICulture.NumberFormat,
               out earnings);


           //check whether all parsing went ok
           //if not alert
           if (earningsParseOk)
           {
               //go go go
           }
           else
           {
               //error
           }

gtr1971 wrote:

think of the most common, elementary way you'd handle this problem and that is likely my answer

Mehrdad Seyrafi wrote:

If you mean this, then i have a tricky solution for that, i manipulate the application binary source "exe" file (only a bit toggle is sufficient) so that it works fine

Mehrdad Seyrafi wrote:

store it in the resource of my application. I extract it only while needed and then will be removed.

ahlm wrote:

I have many books

string str = "codeproject.com/script/";
str = str.Replace("script", "scripl");

public static string ReplaceCharacter(string original, int index, char newChar)
{
    // ...
}

// Characters must be Unicode!
public static string ReplaceCharacter(string original, int index, char newChar)
{
    if (index < original.Length)
    {
        char[] chars = original.ToCharArray();
        chars[index] = newChar;
        return new string(chars);
    }
    else
        return original;
}