⚡Monitor Tab Changes in the Tabs Container without any plugins

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🚩Introduction 

  • In Oracle APEX applications, Tabs Container components helps to organize multiple regions efficiently. However, APEX does not provide a built-in declarative option to detect which tab is active when users switch between them, making it challenging to trigger conditional logic based on tab selection.

  • This can be solved by creating the custom dyanamic action to capture the tab change. This approach enables dynamic actions like refreshing regions or executing custom logic whenever a tab becomes active, without requiring any plugins.

📑Why It is Essential to Track Tab Change in Tabs Container

In APEX applications, pages often organize multiple regions under a Tabs Container to separate content like Details, History, or Reports. While this improves layout, users actions on different tabs often require specific logic to run, such as refreshing a region, loading dynamic content, or updating page items. Without capturing which tab is active, developers cannot reliably trigger these actions.

  • Execute custom logic when a specific tab is selected

  • Refresh only the relevant region instead of the entire page

  • Control dynamic content and page items efficiently

  • Enhance user experience by responding precisely to tab navigation

  • Build enterprise-ready, interactive tabbed interfaces without plugins 

👉 Steps to Detect Tab Changes in Tabs Container

We can trigger an event when the tabs changes within the tabs container by creating the custom event in dynamic action without any plugins. We can see how to achieve this in the following steps. 

Step 1: 

In the page designer, create region and select the region template as Tabs Container and create multiple sub regions as tabs under that. 

Step 2: 

Create the Dynamic action with the following things: 

                          Event                  :   Custom

                          Custom Event   :   atabsactivate

                          Selection Type  :  Region 
  
                          Region               : Tabs Container Region Name

Step 3: 

Create true action of type Execute Javascript Code and under that copy the below javascript code to get the reference of tab which is clicked. Using this reference, you can write your own custom business logic required for your application.


var newTab = $(this.triggeringElement).find('a.t-Tabs-link[aria-selected="true"]');
var tabName = newTab.find('span').text().trim(); 
alert(tabName);

Step 4: 

Now save the page and run the application, on clicking each tab,  custom dynamic action will be triggered and your defined logic will be executed.



🔥 Conclusion

Thus, capturing the active tab reference in the Tabs Container can be achieved by creating custom dynamic action without any plugins. This enables developers to run dynamic actions, refresh specific regions, or execute custom logic whenever a tab is selected, enhancing usability and providing a more responsive, enterprise-ready interface without relying

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