kevinya

 

javascript:

var mySelect = $("select[id*=mySelect]"); //群組開窗
                alert("mySelect.length:" + mySelect.children("option").length);

 

 

參考文章：

how to check how many options in a dropdown

http://stackoverflow.com/questions/3337749/how-to-check-how-many-options-in-a-dropdown