Most Fx_Frame options are automatically set by QddbScript, so you probably don't want to modify them. There are some options, however, that applications need to change on a regular basis. These include:
| -beforeadd list | evaluate list before adding an instance |
| -afteradd list | evaluate list after adding an instance |
| -beforedelete list | evaluate list before deleting an instance |
| -afterdelete list | evaluate list after deleting an instance |
| -beforechange list | evaluate list before bringing a new instance into view |
| -afterchange list | evaluate list after bringing a new instance into view |
| -addtoend 0|1 | add all new instances to the end of the instance list |
| -copy_instances list | when a new instance is created, copy the last one in view |
| -showbutton_add 0|1 | show ``Add'' button if attribute is expandable |
| -showbutton_view 0|1 | show ``View'' button if attribute is expandable |
| -showbutton_del 0|1 | show ``Del'' button if attribute is expandable |
| -anchor e|w|s|n|ne|se|sw|nw | anchor for sub-frame $w.f_0 |
| -labelfg color | label foreground color |
The before and after options are important because they allow the programmer to insert code (the ``list'') around the execution of any standard Fx action. For example, you may want to recalculate an invoice total after an item is deleted:
=Items configure -afterdelete {
MyApp:RecalculateTotal
} -addtoend 1
You may (re)configure any of these options at any time
.