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