asp.net webforms中Jquery数据表中的分页 编辑 - 如何使用 ajax 发布

问题描述

我有一个 API，它接受页码和页面大小作为参数来返回用户详细信息。 加载数据到jquery数据表。每次都需要将页码和大小传递给 API 以获取数据。如何获取页码并将其传递给 webmethod 并始终启用下一个按钮。因为当我第一次加载数据时，它只显示页码为 1 并且下一步按钮被禁用。

 var tableuserDetails = $("#GrdUser").DataTable({
    processing: true,filter: true,orderMulti: false,paging: true,searching: true,bFilter: true,bsort: true,bInfo: true,pagingType: "simple",columns: [{ "data": "Id" },{ "data": "Name" },{ "data": "userName" },{ "data": "email" },{ "data": "role" }
    ]
});

function getUsers() {
    var info =tableuserDetails.page.info();
    $.ajax({
        data: '{pageNumber:' + info.page+1 + ',pageSize:' + 10 + '}',type: "POST",url: "MyPage.aspx/GetUsers",contentType: Constants.ContentType,error: function (XMLHttpRequest,textStatus,errorThrown) {
            debugger;
            alert("Request: " + XMLHttpRequest.toString() + "\n\nStatus: " + textStatus + "\n\nError: " + errorThrown);
        },success: function (result) {
            
        },});
}

解决方法

我认为您正在寻找这个：DataTables server side processing。您拥有的配置未部分加载数据。它假定您在设置数据集时拥有所有行。

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

而返回数据的格式应该是这样的：

{
  "draw": 3,"recordsTotal": 57,"recordsFiltered": 57,"data": [
    [
      "Airi","Satou","Accountant","Tokyo","28th Nov 08","$162,700"
    ],/* etc */

类似 C# 的响应示例：

    /// <summary>
    ///     Resultset to be JSON stringified and set back to client.
    /// </summary>
    [Serializable]
    [SuppressMessage("ReSharper","InconsistentNaming")]
    public class DataTableResultSet
    {
        /// <summary>Array of records. Each element of the array is itself an array of columns</summary>
        public List<List<string>> data = new List<List<string>>();

        /// <summary>value of draw parameter sent by client</summary>
        public int draw;

        /// <summary>filtered record count</summary>
        public int recordsFiltered;

        /// <summary>total record count in resultset</summary>
        public int recordsTotal;

        public string ToJSON()
        {
            return JsonConvert.SerializeObject(this);
        }
    }

编辑 - 如何使用 ajax 发布

  $(document).ready(function () {
    $('#mytable').DataTable({
      processing: true,serverSide: true,ajax: {
        data: '{pageNumber:' + info.page+1 + ',pageSize:' + 10 + '}',type: "POST",url: "MyPage.aspx/GetUsers",contentType: Constants.ContentType,error: function (XMLHttpRequest,textStatus,errorThrown) {
            debugger;
            alert("Request: " + XMLHttpRequest.toString() + "\n\nStatus: " + textStatus + "\n\nError: " + errorThrown);
        },success: function (result) {
            
        }
    });
  });