Regular expression validation

Accepted answer

hi,

yes, u can use regular expression validation in windows application.
Try...
string stringInput = "testw1234s";
Regex myPattern = new Regex(@"[A-Za-z]{5}\d{4}[A-Za-z]{1}");
bool a = myPattern.IsMatch(stringInput);

also refer

http://www.codeproject.com/Articles/10093/Validators-for-Windows-Forms-ValidationProvider-Co

hope this help.

Vulpes14y ago

Note that if those characters are the only ones the string can contain, then you also need to add the ^ (string start) and $ (string end) anchors to your regular expression:

Regex myPattern = new Regex(@"^[A-Za-z]{5}\d{4}[A-Za-z]$");

If you don't do that then a string like the following will also be matched as well:

string stringInput = "anothertestw1234salsomatches";

Zuber Kazi14y ago

I found the way using System.Text.RegularExpressions;
Match m = Regex.Match(str, "[a-zA-Z][a-zA-Z][a-zA-Z][a-zA-Z][a-zA-Z][0-9][0-9][0-9][0-9][a-zA-Z]");
if (m.Success)
MessageBox.Show("valid");
else
MessageBox.Show("invalid");