c# check if string is only letters and numbers
if (textVar.All(c => Char.IsLetterOrDigit(c))) {
// String contains only letters & numbers
}
c# check if string is only letters and numbers
if (textVar.All(c => Char.IsLetterOrDigit(c))) {
// String contains only letters & numbers
}
c# take only int from string
resultString = Regex.Match(subjectString, @"\d+").Value;
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