I am formatting numbers to string using the following format string "# #.##", at some point I need to turn back these number strings like (1 234 567) into something like 1234567. I am trying to strip out the empty chars but found that
value = value.Replace(" ", "");
for some reason and the string remain 1 234 567. After looking at the string I found that
value[1] is 160.
I was wondering what the value 160 means?
The answer is to look in Unicode Code Charts - where you'll find the Latin-1 supplement chart; this shows that U+00A0 (160 as per your title, not 167 as per the body) is a non-breaking space.
Maybe you could to use a regex to replace those empty chars:
Regex.Replace(input, @"\p{Z}", "");
This will remove "any kind of whitespace or invisible separator".
This is a fast (and fairly readable) way of removing any characters classified as white space using Char.IsWhiteSpace:
StringBuilder sb = new StringBuilder (value.Length);
foreach (char c in value)
{
if (!char.IsWhiteSpace (c))
sb.Append (c);
}
string value= sb.ToString();
As dbemerlin points out, if you know you will only need numbers from your data, you would be better use Char.IsNumber or the even more restrictive Char.IsDigit:
StringBuilder sb = new StringBuilder (value.Length);
foreach (char c in value)
{
if (char.IsNumber(c))
sb.Append (c);
}
string value= sb.ToString();
If you need numbers and decimal seperators, something like this should suffice:
StringBuilder sb = new StringBuilder (value.Length);
foreach (char c in value)
{
if (char.IsNumber(c)|c == System.Globalization.NumberFormatInfo.CurrentInfo.NumberDecimalSeparator )
sb.Append (c);
}
string value= sb.ToString();