How to fire select onchange event with jQuery?

Question

I have a dropdown list:

<select size="1" name="filter"id="priority_filter" onchange="filter_user_trainings();">
   <option value="all">All</option>
   <option value="optional">Optional</option>
   <option value="mandatory">Mandatory</option>
   <option value="essential">Essential</option>
   <option value="custom">Custom</option>
</select>

In a function I call these:

if(db==0 || db==1 ||db==2)
{
   $("#priority_filter").val('custom');
}

I want to fire the select onchange function when the jQuery switches the value. How can I do this? The code above does not work.

Answer 1

You can call change() on select to first or .trigger("change");

if(db==0 || db==1 ||db==2)
{
   $("#priority_filter").val('custom');    
   $("#priority_filter").change();    
}

OR

if(db==0 || db==1 ||db==2)
{
   $("#priority_filter").val('custom').change();      
}