adding column sorting to flexigrid in ASP.NET mvc

Hi experts,

I saw this Flexigrid example for using it with ASP.NET MVC.

http://www.ienablemuch.com/2011/03/using-flexigrid-for-aspnet-mvc.html

In this example they are using no sqlite as their database.

I'm using sql server 2008. So I simply changed the connection string in the web.config to this and it works fine with sql server.

<add name="EntContext" connectionString="Data Source=MYServer\SQLEXPRESS;Initial Catalog=Northwind;Integrated Security=True" providerName="System.Data.SqlClient" />

In this example they are using the Code First Entity Framework.

This example uses the Customer table from the Northwind database.

I'm using Visual Studio 2013 and I created a ASP.NET MVC 4 project using the Basic Template, C# and Aspx view engine.

My Project Directory looks like this:

my directory
Here is the code I have, which is exactly the same as listed at the web link above.

Helper.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace FlexigridUsingMvc2.Extensions
{
    public static class Helpers
    {
        public static IQueryable<T> LimitAndOffset<T>(this IQueryable<T> q,
                            int pageSize, int pageOffset)
        {
            return q.Skip((pageOffset - 1) * pageSize).Take(pageSize);
        }
    }

}

[subtitle]Models[/subtitle]

[b]All.css[/b]

[code]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;

namespace FlexigridUsingMvc2.Models
{
    public class Customer
    {
        public string CustomerID { get; set; }
        public string CompanyName { get; set; }
        public string ContactName { get; set; }
        public string ContactTitle { get; set; }
    }
    
    public class EntContext : DbContext
    {
        public DbSet<Customer> Customers { get; set; }
    }
}

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Controller


HomeController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using FlexigridUsingMvc2.Models;
using FlexigridUsingMvc2.Extensions;

namespace FlexigridUsingMvc2.Controllers
{
    public class HomeController : Controller
    {
        //
        // GET: /Home/
        
        [HttpPost]
        public JsonResult List(int page, int rp, string qtype, string letter_pressed, string query)
        {

            using (var db = new EntContext())
            {
                if (letter_pressed == "ALL") letter_pressed = "";

                Func<IQueryable<Customer>> CustomerFiltered = () =>
                    db.Customers
                    .Where(x =>
                            (
                                (
                                    !string.IsNullOrEmpty(letter_pressed)
                                    && x.CompanyName.StartsWith(letter_pressed)
                                )
                                ||
                                string.IsNullOrEmpty(letter_pressed)
                            )
                            &&
                            (
                                (
                                    !string.IsNullOrEmpty(query)
                                    &&
                                    (
                                        (qtype == "CompanyName" && x.CompanyName.Contains(query))
                                        ||
                                        (qtype == "ContactName" && x.ContactName.Contains(query))
                                        ||
                                        (qtype == "ContactTitle" && x.ContactTitle.Contains(query))
                                    )
                                )
                                ||
                                string.IsNullOrEmpty(query)
                            )
                        );
                
                return Json(
                    new
                    {
                        page = page,
                        total = CustomerFiltered().Count(),
                        rows =
                            CustomerFiltered()
                            .OrderBy(x => x.CompanyName)
                            .LimitAndOffset(pageSize: rp, pageOffset: page)
                            .ToList()
                            .Select(x =>
                                new
                                {
                                    id = x.CustomerID,
                                    cell = new string[] { x.CompanyName, x.ContactName, x.ContactTitle }
                                })
                    });


            }//using
        }//List

        public ActionResult Index()
        {
            return View();
        }

    }
}

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Views


Home/Index.aspx

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    
    <link href="<%: Url.Content("~/Content/Site.css")%>" rel="stylesheet" type="text/css" />
    <script src="<%: Url.Content("~/Scripts/jquery-1.8.2.min.js")%>" type="text/javascript"></script>
    <script src="<%: Url.Content("/Scripts/flexigrid/flexigrid.pack.js")%>" type="text/javascript"></script>
    <link href="<%: Url.Content("~/Scripts/flexigrid/css/flexigrid.css")%>" rel="stylesheet" type="text/css" />
    
    <script type="text/javascript">
        $(document).ready(function () {     
            
            $("#fff").flexigrid
            (
            {
                url: '/Home/List/',
                dataType: 'json',
                colModel: [                
                { display: 'Company', name: 'CompanyName', width: 200, sortable: true, align: 'left' },
                { display: 'Contact', name: 'ContactName', width: 280, sortable: true, align: 'left' },
                { display: 'Contact Title', name: 'ContactTitle', width: 220, sortable: true, align: 'left' }
                ],
                buttons: [
                { name: 'Add', bclass: 'add', onpress: add },
                { name: 'Edit', bclass: 'edit', onpress: edit },
                { name: 'Delete', bclass: 'delete', onpress: del },                                                
                { separator: true },
                { name: 'A', onpress: sortAlpha },
                { name: 'B', onpress: sortAlpha },
                { name: 'C', onpress: sortAlpha },
                { name: 'D', onpress: sortAlpha },
                { name: 'E', onpress: sortAlpha },
                { name: 'F', onpress: sortAlpha },
                { name: 'G', onpress: sortAlpha },
                { name: 'H', onpress: sortAlpha },
                { name: 'I', onpress: sortAlpha },
                { name: 'J', onpress: sortAlpha },
                { name: 'K', onpress: sortAlpha },
                { name: 'L', onpress: sortAlpha },
                { name: 'M', onpress: sortAlpha },
                { name: 'N', onpress: sortAlpha },
                { name: 'O', onpress: sortAlpha },
                { name: 'P', onpress: sortAlpha },
                { name: 'Q', onpress: sortAlpha },
                { name: 'R', onpress: sortAlpha },
                { name: 'S', onpress: sortAlpha },
                { name: 'T', onpress: sortAlpha },
                { name: 'U', onpress: sortAlpha },
                { name: 'V', onpress: sortAlpha },
                { name: 'W', onpress: sortAlpha },
                { name: 'X', onpress: sortAlpha },
                { name: 'Y', onpress: sortAlpha },
                { name: 'Z', onpress: sortAlpha },
                { name: 'ALL', onpress: sortAlpha }
                ],
                searchitems: [
                { display: 'Company', name: 'CompanyName', isdefault: true },
                { display: 'Contact', name: 'ContactName' },
                { display: 'Contact Title', name: 'ContactTitle' }
                ],
                singleSelect: true,
                sortname: "CompanyName",
                sortorder: "asc",
                usepager: true,
                title: 'Companies',
                useRp: true,
                rp: 10,
                showTableToggleBtn: false,
                width: 800,
                height: 255
            }
            );

        });

        function sortAlpha(com) {
            jQuery('#fff').flexOptions({ newp: 1, params: [{ name: 'letter_pressed', value: com }, { name: 'qtype', value: $('select[name=qtype]').val()}] });
            jQuery("#fff").flexReload();
        }
        
        function edit(com, grid) {

            // alert(com); // Edit
            
            if ( $('.trSelected',grid).length == 1 ) 
            {
                var items = $('.trSelected',grid);
                alert(com + ' ' + items[0].id.substr(3));
            }
        }
        
        function add(com, grid) {

            alert(com); 

            /*if ($('.trSelected', grid).length == 1) {
                var items = $('.trSelected', grid);
                alert(items[0].id.substr(3));
            }*/
        }
        
        function del(com, grid) {

            // alert(com); // Delete

            if ($('.trSelected', grid).length == 1) {
                var items = $('.trSelected', grid);
                alert(com + ' ' + items[0].id.substr(3));
            }
        }
        
    </script>
    
    <title>Flexigrid example showing Customers table data</title>
    
</head>
<body>
    <div>
        <table id="fff" style="display:none"></table>
    </div>
</body>




</html>

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When I run my application i get this:

my flexigrid working just fine
My flexigrid works fine.

If I click on the magnifying glass on the bottom toolbar I can filter just fine.
If I click on one of the letters on the top toolbar the CompanyName column is filtered by that letter. So if I click on the letter C then it filters so I only see CompanyName items that start with the letter C.

The only functionality that this flexigrid example does not have is, if I click the column header, it does not sort Ascending or Descending on that column.

Anyone know how I can add column sorting on my grid when I click on the column headers?

In my view page called Index.aspx in the flexigrid javascript in this snippet I set the sortable property for the columns to true but that didn't seem to fix it.

                colModel: [                
                { display: 'Company', name: 'CompanyName', width: 200, sortable: true, align: 'left' },
                { display: 'Contact', name: 'ContactName', width: 280, sortable: true, align: 'left' },
                { display: 'Contact Title', name: 'ContactTitle', width: 220, sortable: true, align: 'left' }
                ],

Do I have to create a javascript function to add column sorting at the bottom of my index.aspx?
or
Do I have to create a C# method in my Helper.cs file?
or
Does anyone know what I need to do to add column sorting?
dir.jpg
LVL 1
maqskywalkerAsked:
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SammyCommented:
Your action has to perform the sorting.
See ActionResult FlexigridList () in this demo http://www.codeproject.com/Articles/30588/ASP-NET-MVC-Flexigrid-sample
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