数据表.服务器端处理.如何获取有关表格的信息

Question

我正试图遵循以下示例：https://www.datatables.net/manual/server-side

示例中的Javascript代码：

$(document).ready(function() {
    $('#example').DataTable( {
        "processing": true,
        "serverSide": true,
        "ajax": "scripts/server_processing.php"
    } );
} );

HTML代码：

<table id="example" class="display" cellspacing="0" width="100%">
        <thead>
            <tr>
                <th>First name</th>
                <th>Last name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>
        </thead>
        <tfoot>
            <tr>
                <th>First name</th>
                <th>Last name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>
        </tfoot>
    </table>

这是服务器端脚本：

<?php
/*
 * DataTables example server-side processing script.
 *
 * Please note that this script is intentionally extremely simply to show how
 * server-side processing can be implemented, and probably shouldn't be used as
 * the basis for a large complex system. It is suitable for simple use cases as
 * for learning.
 *
 * See http://datatables.net/usage/server-side for full details on the server-
 * side processing requirements of DataTables.
 *
 * @license MIT - http://datatables.net/license_mit
 */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Easy set variables
 */
// DB table to use
$table = 'datatables_demo';
// Table's primary key
$primaryKey = 'id';
// Array of database columns which should be read and sent back to DataTables.
// The `db` parameter represents the column name in the database, while the `dt`
// parameter represents the DataTables column identifier. In this case simple
// indexes
$columns = array(
    array( 'db' => 'first_name', 'dt' => 0 ),
    array( 'db' => 'last_name',  'dt' => 1 ),
    array( 'db' => 'position',   'dt' => 2 ),
    array( 'db' => 'office',     'dt' => 3 ),
    array(
        'db'        => 'start_date',
        'dt'        => 4,
        'formatter' => function( $d, $row ) {
            return date( 'jS M y', strtotime($d));
        }
    ),
    array(
        'db'        => 'salary',
        'dt'        => 5,
        'formatter' => function( $d, $row ) {
            return '$'.number_format($d);
        }
    )
);
// SQL server connection information
$sql_details = array(
    'user' => '',
    'pass' => '',
    'db'   => '',
    'host' => ''
);

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * If you just want to use the basic configuration for DataTables with PHP
 * server-side, there is no need to edit below this line.
 */
require( 'ssp.class.php' );
echo json_encode(
    SSP::simple( $_GET, $sql_details, $table, $primaryKey, $columns )
);

服务器如何接收有关表的信息？当前页码、显示的记录数等等？如何将这些信息传递给ASP.NET MVC控制器？

Answer 1

我在那里找到

将jQuery DataTables与ASP.NET Mvc一起用于服务器端过滤、排序和分页

Answer 2

对于每个Ajax请求，jQuery DataTables都会发送"发送参数"部分中描述的参数。

例如，start和length参数表示第一个记录编号和请求的记录数量，请参见以下内容：

start
寻呼第一个记录指示符。这是当前数据集中的起点（0基于索引，即0是第一条记录）。

length
表可以在当前图形中显示的记录数。除非服务器要返回的记录较少，否则返回的记录数应等于此数字。注意，这可以是-1，表示应该返回所有记录（尽管这否定了服务器端处理的任何好处！）