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Should I clone...?

 
Marie Mazerolle
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Hi,
Users of my application can scroll through a list of companies. When they select a company, its details are displayed in textfields and other components.
If the user changes values and then selects another company without saving, I want to display a message to the user to notify him/her.
What is the best way to do that? Should I clone every company object when it's selected, and then when the user selects a new company, compare the original object to the cloned object? It doesn't seem very efficient. Is there a better way to achieve this?
Thanks,
Marie
 
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