DataGrid can accept images...or all can accept JTable(Java)

Question

1)Flex 4.1 may connect to databases from Sharing Hosting Environments?
2)The concept of cookies exist in Flex/AS3/E4X?
3)DataGrid can accept images...or all can accept JTable(Java)?
4)Why this gives error...? 
FlexGrocer.mxml
[Bindable] 
public var shoppingCart:ShoppingCart = new ShoppingCart(); 
totalInput.text=shoppingCart.toString;   // this here get eror
ShoppingCart.as
  public function toString():String {
 return "[ShoppingCart $" + total + "] " + items;}
return "[ShoppingCart $" + total + "] " + items;}  

Answer 1

For someone who loves Mac, you haven't really kept up.
And you NEVER update IOS unless you backup first.
The reason everything is off after this update is - it isn't an update.   IOS 7 is a new operating system, just like IOS 5 and IOS 6.    So yes, your settings and apps will be off.
iCloud backup...
Your device can be set to backup to the cloud.    This does not mean you can't backup to computer.   I do it all the time.   I cable to the computer that my device has synced to before and select backup to computer.
When you sync, you can change the setting to backup to the computer every time.  
You need to make friends with the cloud.   Login online to view what is stored and synced.
https://www.icloud.com/ipad_welcome/
The cloud keeps your information synced on the Mac, phone and any other device you have.
I have Mac, iPad and a Note 3 cell phone.   The cloud keeps my information the same on all of them. (Calendar, email, contacts, documents)
More about contacts...   I have found none of the email or phone lists with any service keep my contact list complete - except Google.    I suggest you use gmail and merge all contacts.
You can share contact cards via gmail from most mobile devices and computers.   Open gmail on phone and download the contacts and merge.
Pain in the neck the first time, but a lifesaver once it is setup.