Events Overview
RadDropDownTree control supports a number of client-side events that let you customize its behavior:
OnClienLoad - client-side event handler iscalled after the RadDropDownTree is fully initialized on the client-side.
OnClientDropDownOpening - client-side event that is fired before the dropdown of the RadDropDownTree is opened.
OnClientDropDownOpened - client-side event that is fired after the dropdown of the RadDropDownTree is opened.
OnClientDropDownClosing - client-side event that is fired before the dropdown of the RadDropDownTree is closed.
OnClientDropDownClosed - client-side event that is fired after the dropdown of the RadDropDownTree is closed.
OnClientEntryAdding - client-side event that is fired when an entry is about to be added.
OnClientEntryAdded - client-side event that is fired when an entry is already added.
OnClientEntryRemoving - client-side event that is fired when an entry is about to be removed.
OnClientEntryRemoved - client-side event that is fired when an entry is already removed.
OnClientClearButtonClicking - client-side event taht fires immediately when the Clear button in the entry area of the RadDropDownTree is clicked.
OnClientClearButtonClicked - client-side event that fires after the Clear button in the entry area of the RadDropDownTree is clicked.