Nested Table view in abp framework

To implement a nested view in an ABP Framework project with the code you provided, we need to ensure that clicking on a row in the parent table (QueuesTable) opens a child row displaying more details. This typically involves:

1. Setting up the parent table to handle row clicks and expand/collapse child rows.
2. Fetching and displaying child data when a parent row is expanded.

I'll break down the implementation into key steps. The steps will assume the use of DataTables and ABP Framework's conventions.

1. HTML Structure for Parent Table

The provided HTML for the parent table is already set up correctly:

    
        
            @L["Actions"]
            @L["Name"]
            @L["TicketRangeMin"]
            @L["TicketRangeMax"]
            @L["TicketCode"]
            @L["IsDefaultQueue"]
            @L["LastTicketId"]
        
    

2. JavaScript for Parent Table Initialization

The provided JavaScript to initialize the parent table and define its columns is mostly correct. Ensure that the DataTable configuration is correctly set up:

var _$tenantsTable = $('#QueuesTable');

var dataTableColumns = [
    {
        rowAction: {
            items: [
                {
                    text: l("Expand"),
                    visible: abp.auth.isGranted('QueuingSystem.Queues.Edit'),
                    action: function (data) {
                        openDetailRow(this, "/Pages/TicketQueues/QueueTickets?queueId=" + data.record.queue.id);
                    }
                }
            ]
        },
        width: "1rem"
    },
    { data: "queue.name" },
    { data: "queue.ticketRangeMin" },
    { data: "queue.ticketRangeMax" },
    { data: "queue.ticketCode" },
    {
        data: "queue.isDefaultQueue",
        render: function (isDefaultQueue) {
            return isDefaultQueue ? '' : '';
        }
    },
    { data: "queue.lastTicketId" }
];

var dataTable = _$tenantsTable.DataTable(abp.libs.datatables.normalizeConfiguration({
    processing: true,
    serverSide: true,
    paging: true,
    searching: false,
    scrollX: true,
    autoWidth: true,
    scrollCollapse: true,
    order: [[1, "asc"]],
    ajax: abp.libs.datatables.createAjax(queueService.getList, getFilter),
    columnDefs: dataTableColumns
}));

3. Function to Handle Row Expansion and Load Child Data

The function openDetailRow is used to open the child row under the clicked parent row. Adjust the function as follows:

var currentOpenedDetailRow;

function openDetailRow(e, url) {
    var tr = $(e).closest('tr');
    var row = dataTable.row(tr);

    if (row.child.isShown()) {
        row.child.hide();
        tr.removeClass('shown');
        currentOpenedDetailRow = null;
    } else {
        if (currentOpenedDetailRow) {
            currentOpenedDetailRow.child.hide();
            currentOpenedDetailRow.node().classList.remove('shown');
        }

        $.get(url).then((data) => {
            row.child(data).show();
            tr.addClass('shown');
            currentOpenedDetailRow = row;
        }).catch((error) => {
            console.error("Error loading data:", error);
        });
    }
}

4. Handling Child Table Loading

Ensure that the URL provided to openDetailRow returns the HTML for the child table. Your backend should return a partial view containing the child table. Example of backend code (C#):

public async Task QueueTickets(Guid queueId)
{
    var viewModel = await _queueService.GetQueueTicketsAsync(queueId);
    return PartialView("_QueueTicketsPartial", viewModel);
}

Where _QueueTicketsPartial.cshtml contains:

    
        
            @L["SequenceNumber"]
            @L["TicketNumber"]
        
    
    
        @foreach (var ticket in Model.Tickets)
        {
            
                @ticket.SequenceNumber
                @ticket.TicketNumber
            
        }
    

5. Child Table Initialization

Ensure that the child table initialization script runs after the HTML is loaded into the parent table row:

(function () {
    $(document).on('shown.bs.collapse', '.child-row', function () {
        var tableId = $(this).find('table').attr('id');
        var queueId = $(this).data('queue-id');

        if (tableId && queueId) {
            var _$childTable = $('#' + tableId);

            var dataTable = _$childTable.DataTable({
                paging: true,
                serverSide: true,
                processing: true,
                ajax: {
                    url: "/api/queue-tickets", // Replace with actual API endpoint
                    data: function (d) {
                        d.queueId = queueId;
                    }
                },
                columnDefs: [
                    { data: 'sequenceNumber', targets: 0 },
                    { data: 'ticketNumber', targets: 1 },
                ]
            });
        }
    });
})();

Final Notes

1. URL Construction: Ensure the URL passed to openDetailRow is correctly constructed and points to the correct endpoint that returns the child table partial view.
2. Event Binding: Make sure the DataTable for the child rows is initialized correctly after the parent row expansion.
3. Error Handling: Implement appropriate error handling to manage scenarios where data fetching fails.

By following these steps, you can effectively implement a nested view in your ABP Framework project, ensuring that clicking a row in the parent table dynamically loads and displays a child table beneath it.