WebDropDown1.ClientEvents.ItemMouseDown = "WebDropDown_ItemMouseDown"
WebDropDown1.ClientEvents.ItemMouseDown = "WebDropDown_ItemMouseDown";
// The client event 'ItemMouseDown' takes two parameters sender and e // sender is the object which is raising the event // e is the DropDownControlEventArgs function WebDropDown_ItemMouseDown(sender, e) { //Gets the reference of the WebDropDown var dropdown = $find("WebDropDown1"); //Gets the drop-down item that is clicked var item = e.get_value(); //Gets the drop-down items collection var items = dropdown.get_items(); //Removes the item from the collection items.remove(item); }