i've added in AdvancedAutoSuggestBehavior.js and AdvancedAutoSuggestExtender.cs,but it isn't work, please tell me what i do to register OnClientItemOver event in your source code
add_itemOver : function(handler) {
/// <summary>
/// Add an event handler for the itemOver event
/// </summary>
/// <param name="handler" type="Function" mayBeNull="false">
/// Event handler
/// </param>
/// <returns />
this.get_events().addHandler('itemOver', handler);
},
remove_itemOver : function(handler) {
/// <summary>
/// Remove an event handler from the itemOver event
/// </summary>
/// <param name="handler" type="Function" mayBeNull="false">
/// Event handler
/// </param>
/// <returns />
this.get_events().removeHandler('itemOver', handler);
},
raiseItemOver : function(eventArgs) {
/// <summary>
/// Raise the itemOver event
/// </summary>
/// <param name="eventArgs" type="AjaxControlToolkit.AutoCompleteItemEventArgs" mayBeNull="false">
/// Event arguments for the itemOver event
/// </param>
/// <returns />

var handler = this.get_events().getHandler('itemOver');
if (handler) {
handler(this, eventArgs);
}
}



/// <summary>
/// Handler to attach to the client-side itemSelected event
/// </summary>
[DefaultValue("")]
[ExtenderControlEvent]
[ClientPropertyName("itemOver")]
[Description("JS function to call when item is over")]
public string OnClientItemOver
{
get { return GetPropertyValue("OnClientItemOver", string.Empty); }
set { SetPropertyValue("OnClientItemOver", value); }
}