check if the input is String and not numeric

hi
for my unity game i'm creating a register menu, what i want is to check if the inputs are string type and not containing numeric values or special caracters

 

Regular Expressions seem to be what you are looking for; at least the way I interpret your question. The syntax might be a bit unintuitve, but that is something where internet can help. Here is a small example:

Code (CSharp):

1. public bool IsValidName(string input)
2. {
3.     return System.Text.RegularExpressions.Regex.IsMatch(input, "[^A-Za-z]");
4. }

The 'pattern' says the following:

1. "[^A-Za-z]": Any one character between the square-brackets.
2. "[^A-Za-z]": Make that any character, except all others between the brackets (its position is important).
3. "[^A-Za-z]": Character in the range of 'A' up to 'Z'. The hyphen is an indication for this.

Now, if the inputted string contains a character that is not a letter from A to z (either upper- or lowercase), the inputted string is 'illegal'. If you need some more characters, you should add them as you see fit, note though that there are a few special characters. Here is the relevant page.

 

Thanks Mr. Mud, i found the solution in

Code (CSharp):

1. if (!name.All(char.IsLetter))

that works fine for me, your solution is very interesting