Hi Drees,

Actually when you are replacing the field, its getting replaced correctly, but the new field is not having any "onchange" event associated with it.

Thats why on change is not triggering.

So, Just replace the field with the previous one and check out the onchange attribute in original field and keep that in new one too.

<xpath expr="//field[@name='job_id']" position = "replace">

       <field name="job_id" string="Fonction" onchange="<function in original field>"/>

</xpath>

Hope it helps

Hello,

If you want to change position of a field then don't use invisible attribute.It will only invisible that field.

You applied attrs="invisible" and also added field on a position where you want. So field is there in form view 2 times which causes the problem. So instead of position="attribute" , replace it with blank.

Then add field where you want to add and apply onchange.

<xpath expr="//field[@name='job_id']" position="replace"> 

</xpath>

<xpath expr="//path_where_you_want_to_add_field" position="after"> 

 <field name="job_id" string="Fonction" on_change="your_onchange_method"/>

</xpath>

Thanks