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RAD Studio VCL Reference
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TListView.OnChanging Event
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RAD Studio VCL Reference
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Occurs when an item in the list is about to change.
property OnChanging: TLVChangingEvent;
__property TLVChangingEvent OnChanging;
Write an OnChanging event handler to conditionally block changes to an item in the list. Set the AllowChange parameter to false to prevent the change from taking place. The Item parameter is the list item that is about to change. The Change parameter indicates the type of change that is about to happen.
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Description