Question

cell.textField.text = [contact valueForKey:formCell.variableName];

The valueForKey which i get is of unknown type, it can be NSNumber, int, float, NSString..

I want to convert the value to NSString.

using NSString stringWithFormat, should specify format specifier, the type of object is known at run time

Answer 1

1. valueForKey: will never return int or float. Instead, it will wrap them into NSNumbers. Details here.

2. Therefore, you can use "%@" to represent them in stringWithFormat:.

3. You can also use description method of NSObject like this: [[contact valueForKey:formCell.variableName] description].