UITextField Should accept numbers only in iphone

Question

UITextField have to accept the numbers only by using UITableView.

Answer 1

You have to perform two steps:

1. Provide keyboard type as UIKeyboardTypeNumberPad, as mentioned by others.

2. In

   -(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
   

   method check that entered string in numeric or not.You can use following method to check numeric value:

   -(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
   {
       if([self isNumeric:string])
           return TRUE;
       else
           return FALSE;
   }
   
   -(BOOL)isNumeric:(NSString*)inputString
   {
       NSCharacterSet *cs=[[NSCharacterSet characterSetWithCharactersInString:@"0123456789"] invertedSet];
       NSString *filtered;
       filtered = [[inputString componentsSeparatedByCharactersInSet:cs] componentsJoinedByString:@""];
       return [inputString isEqualToString:filtered];
   }