How to get values of id to update on table

public IActionResult OnPostUpdateRows(List ids)
{
    // Perform the update operation using the provided IDs
    return Ok("Update successful");
}

$('#reprintdatabtn').click(function () {
    var dataArr = [];
    $('.myCheckbox:checked').each(function () {
        var id = $(this).closest('tr').find('td#idval').text();
        dataArr.push(id);
    });

    // Send an AJAX request to the server
    $.ajax({
        url: '/pagename?handler=/UpdateRows',
        type: 'POST',
        data: { ids: dataArr },
        success: function (response) {
            console.log(response); // Handle the response from the server
        },
        error: function (xhr, status, error) {
            console.log(xhr.responseText); // Handle the error
        }
    });
});

can you please tell me how to  make update with on post razor page model please to make update

Try this:

$('#reprintdatabtn').click(function () {
    var dataArr = [];
    $('.myCheckbox:checked').each(function () {
        var id = $(this).closest('tr').find('td#idval').text();
        dataArr.push(id);
    });
    console.log(dataArr);
    // Now you can perform the update operation with the retrieved IDs
});