从单一来源填充多个下拉列表并动态更改数据

Question

I have a table named employee. I am fetching data from this table into 5 drop-downs with fields EmpNo, Unit, Location, Onsite/Offshore etc., When i am selecting a value in any of the drop-downs the values in all the drop-downs have to change. Can anyone pls help me how can i acheive this??

Answer 1

Server side solution

There is a SelectedIndexChanged event for the dropdown control. In that event, you need to reset all other dropdowns or reload some other data.

Client side solution (with jQuery)

Listen to the change event of the first dropdown and clear the other dropdown content in that event.

$(function(){
  $("#IDofFirstDropDown").change(function(e){
    $("#IDofSecond").html("");
  });
});