why does '[self.pickerSubArray indexOfObject:self.txtSubCategory.text]' return '2147483647'?

Question

why does '[self.pickerSubArray indexOfObject:self.txtSubCategory.text]' return '2147483647'; while the same string value argument '[self.pickerSubArray indexOfObject:@"Mark"]' brings up 4, as desired?

Answer 1

The Apple docs for NSArray (which I assume your object is, based on the name) say that indexOfObject: returns NSNotFound if the object does not match any in the array. NSNotFound is itself defined as NSIntegerMax which, as others have pointed out, is the value that you are getting back.

indexOfObject: uses isEqual: to compare the items, so in theory if the text is the same then it should be working. Perhaps the text is actually different in some way that you haven't noticed, such as case ("Mark" vs. "mark") or extra padding ("Mark" vs. "Mark ").