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Oracle APEX Tip: Restrict Row Selection in Interactive Grid Using JavaScript

Today, I came across a post on the APEX discussion forum where Karoly Dede raised a request to restrict row selection in an Interactive Grid. In this post, we’ll share the solution to his request.

In Oracle APEX, the Interactive Grid (IG) is a powerful component that allows users to view, edit, and interact with data dynamically. However, in certain business scenarios, developers may need to restrict how many rows a user can select at a time — for example, when performing bulk updates, approvals, or exports.

In this example, we use a Dynamic Action on the “Selection Change [Interactive Grid]” event to:

  • Detect how many rows the user has currently selected.

  • Display an error message if the count exceeds five.

  • Automatically deselect the extra rows to enforce the limit.

This approach ensures that validation happens instantly on the client side, without requiring a page submit or PL/SQL process — making the user experience smooth and responsive.

Paste the following JS code on selection change Dynamic action.

var grid = apex.region("EMP").widget();  // static ID of the IG region

var view = grid.interactiveGrid("getViews", "grid");

var model = view.model;

var selectedRecords = view.getSelectedRecords();

var count = selectedRecords.length;

if (count > 5) {

    apex.message.clearErrors();

    apex.message.showErrors([

        {

            type: "error",

            location: "page",

            message: "You cannot select more than 5 records.",

            unsafe: false

        }

    ]);

    view.setSelectedRecords(selectedRecords.slice(0, 5));

}


Demo_Application


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