Answers for "check string has number c#"

C#
8

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 false
Posted by: Guest on August-23-2020
2

c# how do you check if a string contains only digits

if (str.All(char.IsDigit)) {
  Console.WriteLine("This string only contains numbers");
}
Posted by: Guest on November-08-2020

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