View Full Version : How to show last name of user in text field whose first name is selected in pop butto

Feb 2, 2012, 10:51 AM
Hi All,

I have an array of dictionary which contains two keys- firstName and lastName and their values, eg.

firstName/ lastName

Steve/ Jobs
Andre/ Agassi
Christiano/ Ronaldo

User interface consists of a pop up button and a text field.

I am displaying first name of users in pop up button. I am able to show first name of the user selected in pop button in the text field by using following bindings:


Content Array - AppDelegate - myArray


content - Array Controller - arrangedObjects - firstName
selected value - AppDelegate - selectionValue


Value - AppDelegate - selectionValue

Here myArray is a property declared as NSArray and selectionValue is a property declared as NSString declared in AppDelegate class.

Now I am getting clue less to implement this through bindings:
Text field should show last name of user whose first name is selected in pop up button.

Can anyone suggest me some solution to implement it or is it possible through bindings?


Feb 2, 2012, 11:18 AM
Try creating a NSValueTransformer (http://developer.apple.com/library/mac/ipad/#documentation/Cocoa/Reference/Foundation/Classes/NSValueTransformer_Class/Reference/Reference.html) subclass to do the work for you?