当取消选中复选框时，asp：复选框的OnCheckedChanged事件处理程序不会触发

I have a repeater, in each ItemTemplate of the repeater is an asp:checkbox with an OnCheckedChanged event handler set. The checkboxes have the AutoPostBack property set to true. When any of the checkboxes is checked, the event handler fires. When any is unchecked, the event handler does not fire.I have a repeater, in each ItemTemplate of the