jQuery DataTable - Paging, Custom Styling and Disable Sorting of a column

In my previous article jQuery Datatable using webservice, i explained the basic binding of jQuery Datatable with default sorting.
In this article I will explore below features of jQuery DataTable.
1. Paging.
2. Custom style on paging
3. Hide page numbers when number of rows is less than rows specified on a page
4. Specify width of a column
5. Disable sorting in a particular column.
Figure 1: Default Pagin




Figure 2: Paging is visible for one page.




Figure 3: Paging is not visible when there is only one page




Let's see how we can achieve this:

Step 1:  Download jQuery 1.4.2 and jQuery Datatable

Step 2: Add jquery-1.4.2.min.js and jquery.dataTables.min.js in the page

<script src="jquery-1.4.2.min.js" type="text/javascript"></script><script src="jquery.dataTables.min.js" type="text/javascript"></script>

Step 3: Add the below style in the page.

<style type="text/css">
      .myGrid      {
            width: 100%;
            margin: 0px 0 0px 0;
            border: solid 1px #525252;
            border-collapse: collapse;
            width: 600px;
      }
      .myGrid td      {
            padding: 2px;
            border: solid 1px #c1c1c1;
            color: Black;
            font-family: Arial,Helvetica,sans-serif;
            font-size: 0.9em;
      }
      .myGrid th      {
            color: #fff;
            background: url(images/grid_header.png) repeat-x top;
            font-family: Arial,Helvetica,sans-serif;
            font-size: 0.9em;
            cursor: pointer;
      }
      .dataTables_paginate
      {
            width: 600px;
            background: url(images/grid_pager.png) repeat-x top;
            text-align: center;
      }

      .paging_full_numbers
      {
            width: 600px;
            height: 24px;
            padding: 4px 0px 2px 0px;
            vertical-align: middle;
            line-height: 22px;
      }
      .paging_full_numbers span.paginate_button, .paging_full_numbers span.paginate_active      {
            border: 1px solid #aaa;
            padding: 2px 5px;
            margin: 0 3px;
            cursor: pointer;
            cursor: hand;
      }
      .paging_full_numbers span.paginate_button      {
            background-color: #fff;
      }
      .paging_full_numbers span.paginate_button:hover      {
            background-color: #ccc;
      }
      .paging_full_numbers span.paginate_active      {
            background-color: #99B3FF;
      }
</style>

Step 4: Add below html content inside body tag

<table id="grid" class="myGrid">
      <thead>
            <tr>
                  <th>                        By
                  </th>
                  <th>
                        Recipie Name
                  </th>
                  <th>
                        Preparation Time
                  </th>
                  <th>
                        Cooking Time
                  </th>
            </tr>
      </thead>
      <tbody>
            <tr>
                  <td colspan="5">
                        Loading....
                  </td>
            </tr>
      </tbody></table><div id="errorMessage"></div>

Step 5: Add below javascript in the page. fnDrawCallback allows you to hide paging when number of rows is less than rows specified in one page.

<script language="javascript" type="text/javascript">
      $(document).ready(function() {
            function renderTable(result) {
                  var dtData = [];
                  $.each(result, function() {
                        dtData.push([
                              this.by,
                              this.Recipiename,
                              this.preparationtime,
                              this.cookingtime
                        ]);
            });
            

            $('#grid').dataTable({ //grid is the id of the table                  'aaData': dtData,
                  'bPaginate': true,
                  'bInfo': false,
                  'bFilter': false,
                  'bLengthChange': false,
                  "aoColumns": [
                        { "bSortable": false, sWidth: '80px' },
                        { sWidth: '180px' },
                        { sWidth: '170px' },
                        { sWidth: '170px' }
                  ],
                  'sPaginationType': 'full_numbers',
                  'iDisplayLength': 5,
                  "fnDrawCallback": function() {
                        if ($("#grid").find("tr:not(.ui-widget-header)").length <= 5) {
                              $('div.dataTables_paginate')[0].style.display = "none";
                        }
                        else {
                              $('div.dataTables_paginate')[0].style.display = "block";
                        }
                  }            });      }

      $.ajax({
            type: "GET",
            url: "JsonWebService.asmx/GetRecipie",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function(response) {
                  renderTable(response.d);
            },
            failure: function(errMsg) {
                  $('#errorMessage').text(errMsg);  //errorMessage is id of the div
            }
      });});
</script>

Step 6: Create an asmx file and create below class.

public class Recipie{
      public string by;
      public string Recipiename;
      public string preparationtime;
      public string cookingtime;
}

Step 7: Add below name space in the asmx.cs file

using System.Web.Script.Services;
using System.Data;
using System.Data.SqlClient;

Step 8: Create below webmethod in the asmx.cs file to get data from database and return List to jQuery

[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)]
public List<Recipie> GetRecipie()
{
      string strQuery = "SELECT * FROM Recipie";
      DataTable dtRecipie = null;
      Recipie objRecipie;
      SqlConnection con = GetConnection("Data Source=(local);Initial Catalog=DataTable;Integrated Security=SSPI");
      using(con)
      {
            con.Open();
            using (SqlDataAdapter sqlAdapter = new SqlDataAdapter(strQuery, con))
            {
                  dtRecipie = new DataTable();
                  sqlAdapter.Fill(dtRecipie);
            }
      }
      List<Recipie> drlist = new List<Recipie>();
      foreach (DataRow row in dtRecipie.Rows)
      {
            objRecipie = new Recipie();
            objRecipie.by = row["by"].ToString();
            objRecipie.Recipiename = row["Recipiename"].ToString();
            objRecipie.preparationtime = row["preparationtime"].ToString();
            objRecipie.cookingtime = row["cookingtime"].ToString();
            drlist.Add(objRecipie);
      }
      return drlist;
}

Step 9 : Add below method to get SqlConnection

private SqlConnection GetConnection(string m_conString)
{
      SqlConnection con = new SqlConnection(m_conString);
      return con;
}

This ends the article of creating custom datatable using jquery and webservice.

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