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I feel that this feature will be beneficial when building search algorithms.
Suppose a situation like this, where we use the String control for the user to enter an item for search. We need to find if this item is already present in another drop-down control & then add to it, if not already present.
But if we have this property for the Combo itself, it will trigger a value change event in which we can search & add the new entry to the Strings[] of Combo in one event itself.
This is what I feel...
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