I guess the simplest way is count the number of options using javascript
when the number needs to be shown.
A tracing variable may be helpful too. It might depend on how the buttons
add/remove options. If the option is added/removed by javascript, a counter
may be declared to trace the change. If the option is added/removed in code-
behind, a hidden field may be used to keep tracing.
c****o 发帖数: 265
3
thanks for your answer.
这些东西部分基本上是纯javascript的
只是他们要求用更新count显示当option数量变化
改变option数量的button和link很多处
而且这种select也不少，以后可能还要用
哎 那我现在基本确定没有什么其他办法拉
想到的只能重新做一个类出来封装显示的span和select
结果已有的很多code要改
只能说改完后以后用有些好处
烦死!cry!为什么就没有那么一个事件呢！
counter
code-
【在 S***k 的大作中提到】 : I guess the simplest way is count the number of options using javascript : when the number needs to be shown. : A tracing variable may be helpful too. It might depend on how the buttons : add/remove options. If the option is added/removed by javascript, a counter : may be declared to trace the change. If the option is added/removed in code- : behind, a hidden field may be used to keep tracing.
