<!-- https://abap2ui5.github.io/docs/tutorials/walkthrough/step-6 -->

# Step 6: Row Events

A list of five rows raises a question [Step 3](/tutorials/walkthrough/step-3)
did not have: *which* row was clicked? The event stays the same — what is new
is the argument it carries:

```abap
CLASS zcl_app_walkthrough DEFINITION PUBLIC.
  PUBLIC SECTION.
    INTERFACES z2ui5_if_app.

    TYPES:
      BEGIN OF ty_s_invoice,
        product  TYPE string,
        supplier TYPE string,
        quantity TYPE string,
      END OF ty_s_invoice.

    DATA t_invoices TYPE STANDARD TABLE OF ty_s_invoice WITH EMPTY KEY.

  PROTECTED SECTION.
  PRIVATE SECTION.
ENDCLASS.

CLASS zcl_app_walkthrough IMPLEMENTATION.
  METHOD z2ui5_if_app~main.

    IF client->check_on_navigated( ).

      t_invoices = VALUE #(
          ( product = `Pineapple`    supplier = `ACME`          quantity = `21` )
          ( product = `Milk`         supplier = `Green Growers` quantity = `4`  )
          ( product = `Canned Beans` supplier = `Corner Deli`   quantity = `3`  )
          ( product = `Salad`        supplier = `Green Growers` quantity = `2`  )
          ( product = `Bread`        supplier = `Corner Deli`   quantity = `1`  ) ).

      DATA(view) = z2ui5_cl_ui5_view_builder=>factory(
          )->ele( n = `View` ns = `mvc`
              )->a( n = `xmlns`     v = `sap.m`
              )->a( n = `xmlns:mvc` v = `sap.ui.core.mvc`

              )->ele( `Shell`
                  )->ele( `Page`
                      )->a( n = `title` v = `Walkthrough - Step 6`

                      )->ele( `List`
                          )->a( n = `headerText` v = `Invoices`
                          )->a( n = `items`      v = client->_bind( t_invoices )

                          )->ele( `items`
                              )->tag( `StandardListItem`
                                  )->a( n = `title`       v = `{PRODUCT}`
                                  )->a( n = `description` v = `{SUPPLIER}`
                                  )->a( n = `info`        v = `{QUANTITY}`
                                  )->a( n = `type`        v = `Active`
                                  )->a( n = `press`       v = client->_event( val   = `SHOW_INVOICE`
                                                                              t_arg = VALUE #( ( `${PRODUCT}` ) ) ) ).

      client->view_display( view->stringify( ) ).

    ELSEIF client->check_on_event( `SHOW_INVOICE` ).

      DATA(s_invoice) = VALUE #( t_invoices[ product = client->get_event_arg( ) ] OPTIONAL ).
      client->message_toast_display( |{ s_invoice-quantity } x { s_invoice-product } from { s_invoice-supplier }| ).

    ENDIF.

  ENDMETHOD.
ENDCLASS.
```

## Events With Arguments

- **`type = Active`** makes the whole row clickable and gives it press
  feedback; the `press` handler sits on the row template, so every row fires
  the same event.
- **The argument rides with the event:**
  ``t_arg = VALUE #( ( `${PRODUCT}` ) )``. The `${...}` syntax is resolved
  *per row* in the browser — each clone of the template carries its own
  product name. On the server, `client->get_event_arg( )` returns it, and a
  table read finds the row.
- **The state is still there.** `t_invoices` was filled in the
  `check_on_navigated` branch of an earlier roundtrip — the framework
  restored it before this one, so the event handler can read it. That is the
  serialization from [Step 4](/tutorials/walkthrough/step-4) doing its job.

More on both event directions — server events like this one, and events
handled purely in the browser — under
[Event → Backend](/cookbook/event_navigation/backend).

A toast is a modest way to show an invoice. Next, a real dialog.

<!-- samples:start (generated by scripts/link-samples.mjs — do not edit) -->

## Working Samples

Complete apps from the [sample catalog](https://abap2ui5.github.io/playground/samples/)
that use what this page describes. Each is a single class in [abap2UI5/samples](https://github.com/abap2UI5/samples)
unless its row names another of the three sample repositories — pull that repository with
[abapGit](https://abapgit.org) and start the class with `?app_start=<class>`.

| Sample | Class |
|---|---|
| Extra Arguments with t_arg | [`Z2UI5_CL_SMP_APP_167`](https://github.com/abap2UI5/samples/blob/main/src/01/z2ui5_cl_smp_app_167.clas.abap) |

<!-- samples:end -->