public string OnClientSelectedIndexChanging { get; set; }

Public Property OnClientSelectedIndexChanging As String
	Get
	Set

public:
property String^ OnClientSelectedIndexChanging {
	String^ get ();
	void set (String^ value);
}

member OnClientSelectedIndexChanging : string with get, set

function onSelectedIndexChanging(sender, args)
{
   args.set_cancel(true);
}