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Server side pagination using kendo grid.

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Niraj
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Niraj asked on 14 Jan 2013, 03:11 PM
Please help me out in doing server side pagination using kendo grid
Below is my index.cshtml

@using Kendo.Mvc.UI
<script src="../../js/jquery-1.8.3.min.js" type="text/javascript"></script>
@*<script src="../../js/jquery-1.7.1.min.js" type="text/javascript"></script>*@
@*<script src="../../js/jquery.min.js" type="text/javascript"></script>*@
<link href="../../styles/kendo.common.min.css" rel="stylesheet" type="text/css" />
<script src="../../js/kendo.all.min.js" type="text/javascript"></script>
<link href="../../styles/kendo.default.min.css" rel="stylesheet" type="text/css" />
<script src="../../js/kendo.aspnetmvc.min.js" type="text/javascript"></script>




@model IEnumerable<KendoGrid.Controllers.Product>

@(Html.Kendo().Grid(Model)    
    .Name("Grid")
    .Columns(columns =>
    {
        columns.Bound(p => p.ID).Groupable(false);
        columns.Bound(p => p.Name);
        columns.Bound(p => p.Address);
        columns.Command(command => command.Destroy()).Width(110);
    })
    
    .ToolBar(toolbar => {
        toolbar.Create();
        toolbar.Save();                
    })
        .Editable(editable => editable.Mode(GridEditMode.InCell))
            
    .Sortable(sortable => sortable.SortMode(GridSortMode.MultipleColumn))
    .Scrollable()
    .Navigatable()
    .Filterable()
    .Pageable()
    .Groupable()
        .Resizable(resize => resize.Columns(true))
        .Reorderable(reorder => reorder.Columns(true))
    .Selectable()  
         
    .DataSource(dataSource => dataSource       
        .Ajax()         
        .Batch(true)        
        .ServerOperation(true)        
        .Events(events => events.Error("error_handler"))
        .Model(model => model.Id(p => p.ID))
        .Create("Editing_Create", "Home")
        .Read("Editing_Read", "Home")                    
        .Update("Editing_Update", "Home")
        .Destroy("Editing_Destroy", "Home")
       
       
    )
   
    )

And below is my HomeController.cs

using System.Collections.Generic;
using System.Web.Mvc;
using Kendo.Mvc.Extensions;
using Kendo.Mvc.UI;
using System;
using System.Linq;
using System.Web;

namespace KendoGrid.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            //return View(GetProducts());
            return View();
        }

        public ActionResult Remote_Data()
        {
            return View("AjaxBinding");
        }

        //public ActionResult Products_Read([DataSourceRequest] DataSourceRequest request)
        //{
        //    return Json(GetProducts().ToDataSourceResult(request));
        //}



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

        public ActionResult Editing_Read([DataSourceRequest] DataSourceRequest request)
        {
            

            return Json(SessionProductRepository.All().ToDataSourceResult(request));
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Editing_Create([DataSourceRequest] DataSourceRequest request, [Bind(Prefix = "models")]IEnumerable<Product> products)
        {
            var results = new List<Product>();

            if (products != null && ModelState.IsValid)
            {
                foreach (var product in products)
                {
                    SessionProductRepository.Insert(product);
                    results.Add(product);
                }
            }

            return Json(results.ToDataSourceResult(request, ModelState));
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Editing_Update([DataSourceRequest] DataSourceRequest request, [Bind(Prefix = "models")]IEnumerable<Product> products)
        {
            if (products != null && ModelState.IsValid)
            {
                foreach (var product in products)
                {
                    var target = SessionProductRepository.One(p => p.ID == product.ID);
                    if (target != null)
                    {
                        target.Name = product.Name;
                        target.Address = product.Address;
                        SessionProductRepository.Update(target);
                    }
                }
            }

            return Json(ModelState.ToDataSourceResult());
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Editing_Destroy([DataSourceRequest] DataSourceRequest request, [Bind(Prefix = "models")]IEnumerable<Product> products)
        {
            if (products.Any())
            {
                foreach (var product in products)
                {
                    SessionProductRepository.Delete(product);
                }
            }

            return Json(ModelState.ToDataSourceResult());
        }

        public ActionResult Products(int pageSize, int skip)
        {
            var products = SessionProductRepository.All();

            // Get the total number of records - needed for paging
            var total = products.Count();

            // Page the data
            var data = products.Skip(skip).Take(pageSize).ToList();

            // Return as JSON - the Kendo Grid will use the response
            return Json(new { total = total, data = data });
        }



        //private static IEnumerable<Product> GetProducts()
        //{
        //    List<Product> products = new System.Collections.Generic.List<Product>();

        //    products.Add(new Product { ID = 1, Name = "Test-1", Address = "Address-1" });
        //    products.Add(new Product { ID = 2, Name = "Test-2", Address = "Address-2" });
        //    products.Add(new Product { ID = 3, Name = "Test-3", Address = "Address-3" });
        //    products.Add(new Product { ID = 4, Name = "Test-4", Address = "Address-4" });

        //    return products;
        //}

    }






    public class Product 
    {
        public int ID { get; set; }
        public string Name { get; set; }
        public string Address { get; set; }
    }

    public static class SessionProductRepository
    {
        public static IList<Product> All()
        {
            IList<Product> result = (IList<Product>)HttpContext.Current.Session["Products"];

            if (result == null)
            {
                
            List<Product> products = new System.Collections.Generic.List<Product>();

            products.Add(new Product { ID = 1, Name = "Test-1", Address = "Address-1" });
            products.Add(new Product { ID = 2, Name = "Test-2", Address = "Address-2" });
            products.Add(new Product { ID = 3, Name = "Test-3", Address = "Address-3" });
            products.Add(new Product { ID = 4, Name = "Test-4", Address = "Address-4" });

            products.Add(new Product { ID = 5, Name = "Test-5", Address = "Address-5" });
            products.Add(new Product { ID = 6, Name = "Test-6", Address = "Address-6" });
            products.Add(new Product { ID = 7, Name = "Test-7", Address = "Address-7" });
            products.Add(new Product { ID = 8, Name = "Test-8", Address = "Address-8" });
            products.Add(new Product { ID = 9, Name = "Test-9", Address = "Address-9" });
            products.Add(new Product { ID = 10, Name = "Test-10", Address = "Address-10" });
            products.Add(new Product { ID = 11, Name = "Test-11", Address = "Address-11" });
            products.Add(new Product { ID = 12, Name = "Test-12", Address = "Address-12" });
            products.Add(new Product { ID = 13, Name = "Test-13", Address = "Address-13" });

            HttpContext.Current.Session["Products"] = result = products;
            }

            return result;
        }

        public static Product One(Func<Product, bool> predicate)
        {
            return All().Where(predicate).FirstOrDefault();
        }

        public static void Insert(Product product)
        {
            product.ID = All().OrderByDescending(p => p.ID).First().ID + 1;

            All().Insert(0, product);
        }

        public static void Update(Product product)
        {
            Product target = One(p => p.ID == product.ID);
            if (target != null)
            {
                target.Name = product.Name;
                target.Address = product.Address;
            }
        }

        public static void Delete(Product product)
        {
            Product target = One(p => p.ID == product.ID);
            if (target != null)
            {
                All().Remove(target);
            }
        }
    }

}








1 Answer, 1 is accepted

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Alexander Valchev
Telerik team
answered on 16 Jan 2013, 04:38 PM
Hi Niraj,

I would like to remind you that providing custom solutions or debugging custom projects is out of the scope of our standard support services.

My recommendation is to compare your implementation with the one presented in the example project located at wrappers/aspnetmvc/examples folder of your installation directory. In this project you will find both client and server side code of all the available Grid demos.

I hope this will help.

Regards,
Alexander Valchev
the Telerik team
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Niraj
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Answers by
Alexander Valchev
Telerik team
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