Oracle Apex - Dynamic Actions

Question

In Oracle Apex- Dynamic Actions:

My Queries about in Dynamic action to enable/disable two different items as below. I am working with apex 5 and need to do enable/disable with these item

Having two items in my apex page

1. p1_text_field
2. p2_select_list

I want to disable the p2 when I am entering value in p1 which is enabled to type vise-versa I want to disable the p1 when I am entering value in p2 which is enabled to select the values.

Answer 1

For item p1_text_field:

1. Create a dynamic action with properties: Event - Key down or Change, Selection Type - Item, Item(s) - p1_text_field
2. Add a Client Side Condition: Type - Item is null, Item - p1_text_field. This condition will allow you to unlock disabled field in a case you clear p1_text_field
3. Add True action with type Enable, Selection Type - Item, Item(s) - p2_select_list
4. Add False action with type Disable, Selection Type - Item, Item(s) - p2_select_list

After that, when a user input something into p1_text_field, p2_select_list will be disabled. If the user clears value of p1_text_field, p2_select_list will be enabled. If you don't need this, do not create Client Side Condition.

Repeat same steps for p2_select_list.

UPD - Important notice

I forgot about one "feature" of APEX. When you create a new true or false action, check field Fire on initialization. It have to be No, otherwise action will be executed on page load. The main problem is that APEX sometimes creates new actions with this field set to Yes.