I have strings like
AS_!SD 2453iur ks@d9304-52kasd
I need to get the 2 frist numbres of the string:
for that case will be:
2453 and 9304
I don't have any delimiter in the string to try a split, and the length of the numbers and string is variable, I'm working in C# framework 4.0 in a WPF.
thanks for the help, and sorry for my bad english
This solution will take two first numbers, each can have any number of digits
string s = "AS_!SD 2453iur ks@d9304-52kasd";
MatchCollection matches = Regex.Matches(s, @"\d+");
string[] result = matches.Cast<Match>()
.Take(2)
.Select(match => match.Value)
.ToArray();
Console.WriteLine( string.Join(Environment.NewLine, result) );
will print
2453
9304
you can parse them to int[] by result.Select(int.Parse).ToArray();
You can loop chars of your string parsing them, if you got a exception thats a letter if not is a number them you must to have a list to add this two numbers, and a counter to limitate this.
follow a pseudocode:
for char in string:
if counter == 2:
stop loop
if parse gets exception
continue
else
loop again in samestring stating this point
if parse gets exception
stop loop
else add char to list
Alternatively you can use the ASCII encoding:
string value = "AS_!SD 2453iur ks@d9304-52kasd";
byte zero = 48; // 0
byte nine = 57; // 9
byte[] asciiBytes = Encoding.ASCII.GetBytes(value);
byte[] asciiNumbers = asciiBytes.Where(b => b >= zero && b <= nine)
.ToArray();
char[] numbers = Encoding.ASCII.GetChars(asciiNumbers);
// OR
string numbersString = Encoding.ASCII.GetString(asciiNumbers);
//First two number from char array
int aNum = Convert.ToInt32(numbers[0]);
int bNum = Convert.ToInt32(numbers[1]);
//First two number from string
string aString = numbersString.Substring(0,2);
\d{4}and take the first matches.