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RadDropDownListSelectedValueChanged Event
This event fires only if the SelectedValue has really changed. For example it will not fire if the previously selected item has the same value as the newly selected item.

Namespace: Telerik.WinControls.UI
Assembly: Telerik.WinControls.UI (in Telerik.WinControls.UI.dll) Version: 2017.3.1017.40 (2017.3.1017.40)
Syntax
public event EventHandler SelectedValueChanged

Value

Type: SystemEventHandler
See Also