c# how to check string is number
string s1 = "123";
string s2 = "abc";
bool isNumber = int.TryParse(s1, out int n); // returns true
isNumber = int.TryParse(s2, out int n); // returns falsec# how to check string is number
string s1 = "123";
string s2 = "abc";
bool isNumber = int.TryParse(s1, out int n); // returns true
isNumber = int.TryParse(s2, out int n); // returns falseif string contains number c#
"abc3def".Any(c => char.IsDigit(c));
// Or to make it shorter:
"abc3def".Any(char.IsDigit);c# check if string is all numbers
if (str.All(char.IsDigit)) {
// String only contains numbers
}Copyright © 2021 Codeinu
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