C# check if string is all numbers

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

C# check if string is all numbers

if (str.All(char.IsDigit)) {
  // String only contains numbers
}

Similar codes

9 votes132 views3 answers
Ef update database
C#
0 vote120 views1 answer
ENUM error codes all
C#
1 vote150 views2 answers
Unity sort a list
C#Unity
0 vote125 views1 answer
Wpf keydown detect if control key is down
C#
0 vote241 views2 answers
Show title combox check box wpf
C#
30 votes151 views4 answers
Convert string to date in c#
C#
1 vote183 views1 answer
How to set serial number in gridview in asp net
C#
1 vote142 views1 answer
Hide button unity
C#
0 vote135 views1 answer
C# datetime format ymd
C#
0 vote123 views2 answers
C# clear panel
C#