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How to compare input characters for loop which are in string

Ash P

Ok I am writing a code and I have a row and column. Row has values from A to J and column has values 0 to 9. Now I am trying to put a for loop to check if the input is valid character and not integer for row. How am I gonna check it?? Please tell me what condition I require to only allow in put in form or A B C D till J.

1 Reply

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Manas Mohapatra11y ago
Hi,

When you are looping over please use below code. I provided two options, you can choose any one of them:
Code :

String input = "a";

Option 1:
if(Regex.IsMatch(input, @"^[a-zA-Z]+$") )
{
// Correct value means it contains characters only
}
else
{
// Incorrect value
}

Option 2
bool result= input.All(Char.IsLetter);