c# regex number only
Regex
string input = "1-205-330-2342";
string result = Regex.Replace(input, @"[^d]", ""); //number onlyc# regex number only
Regex
string input = "1-205-330-2342";
string result = Regex.Replace(input, @"[^d]", ""); //number onlyregex c# password numbers and letters
private bool ValidatePassword(string password, out string ErrorMessage)
{
var input = password;
ErrorMessage = string.Empty;
if (string.IsNullOrWhiteSpace(input))
{
throw new Exception("Password should not be empty");
}
var hasNumber = new Regex(@"[0-9]+");
var hasUpperChar = new Regex(@"[A-Z]+");
var hasMiniMaxChars = new Regex(@".{8,15}");
var hasLowerChar = new Regex(@"[a-z]+");
var hasSymbols = new Regex(@"[!@#$%^&*()_+=[{]};:<>|./?,-]");
if (!hasLowerChar.IsMatch(input))
{
ErrorMessage = "Password should contain at least one lower case letter.";
return false;
}
else if (!hasUpperChar.IsMatch(input))
{
ErrorMessage = "Password should contain at least one upper case letter.";
return false;
}
else if (!hasMiniMaxChars.IsMatch(input))
{
ErrorMessage = "Password should not be lesser than 8 or greater than 15 characters.";
return false;
}
else if (!hasNumber.IsMatch(input))
{
ErrorMessage = "Password should contain at least one numeric value.";
return false;
}
else if (!hasSymbols.IsMatch(input))
{
ErrorMessage = "Password should contain at least one special case character.";
return false;
}
else
{
return true;
}
}Copyright © 2021 Codeinu
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