diff --git a/ASP.NET Core/ASP.NET Core.csproj b/ASP.NET Core/ASP.NET Core.csproj
index 1b62626..6e9aa5d 100644
--- a/ASP.NET Core/ASP.NET Core.csproj	
+++ b/ASP.NET Core/ASP.NET Core.csproj	
@@ -18,8 +18,8 @@
     </Exec>
   </Target>
   <ItemGroup>
-    <PackageReference Include="DevExtreme.AspNet.Data" Version="2.*" />
-    <PackageReference Include="DevExtreme.AspNet.Core" Version="23.1.*" />
+    <PackageReference Include="DevExtreme.AspNet.Data" Version="3.0.0" />
+    <PackageReference Include="DevExtreme.AspNet.Core" Version="23.2.3" />
   </ItemGroup>
 
   <ProjectExtensions>
diff --git a/ASP.NET Core/Controllers/SampleDataController.cs b/ASP.NET Core/Controllers/SampleDataController.cs
index 9e55a9a..9da8a8d 100644
--- a/ASP.NET Core/Controllers/SampleDataController.cs	
+++ b/ASP.NET Core/Controllers/SampleDataController.cs	
@@ -3,20 +3,36 @@
 using System.Linq;
 using System.Net;
 using System.Net.Http;
+using System.Runtime.CompilerServices;
 using ASP_NET_Core.Models;
 using DevExtreme.AspNet.Data;
 using DevExtreme.AspNet.Mvc;
+using Microsoft.AspNetCore.Http.Features;
 using Microsoft.AspNetCore.Mvc;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 
 namespace ASP_NET_Core.Controllers {
 
-    [Route("api/[controller]")]
+    [Route("api/[controller]/[action]")]
     public class SampleDataController : Controller {
-
+       
         [HttpGet]
         public object Get(DataSourceLoadOptions loadOptions) {
-            return DataSourceLoader.Load(SampleData.Orders, loadOptions);
+            return DataSourceLoader.Load(SampleData.Customers, loadOptions);
         }
+        [HttpPut]
+        public IActionResult Put(int key, string values)
+        {
+
+            var item = SampleData.Customers.First(e => e.ID == key);
+
+            JsonConvert.PopulateObject(values, item);
 
+            if (!TryValidateModel(item))
+                return BadRequest(ModelState);
+
+            return Ok(item);
+        }
     }
 }
\ No newline at end of file
diff --git a/ASP.NET Core/Models/SampleData.cs b/ASP.NET Core/Models/SampleData.cs
index b49f5b9..21786bd 100644
--- a/ASP.NET Core/Models/SampleData.cs	
+++ b/ASP.NET Core/Models/SampleData.cs	
@@ -6,357 +6,32 @@
 
 namespace ASP_NET_Core.Models {
     static class SampleData {
-        public static List<SampleOrder> Orders = new List<SampleOrder>() {
-            new SampleOrder {
-                OrderID = 10248,
-                OrderDate = new DateTime(1996, 7, 4),
-                ShipCountry = "France",
-                ShipCity = "Reims",
-                CustomerName = "Paul Henriot"
-            },
-            new SampleOrder {
-                OrderID = 10249,
-                OrderDate = new DateTime(1996, 7, 5),
-                ShipCountry = "Germany",
-                ShipCity = "Münster",
-                CustomerName = "Karin Josephs"
-            },
-            new SampleOrder {
-                OrderID = 10250,
-                OrderDate = new DateTime(1996, 7, 8),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Mario Pontes"
-            },
-            new SampleOrder {
-                OrderID = 10251,
-                OrderDate = new DateTime(1996, 7, 8),
-                ShipCountry = "France",
-                ShipCity = "Lyon",
-                CustomerName = "Mary Saveley"
-            },
-            new SampleOrder {
-                OrderID = 10252,
-                OrderDate = new DateTime(1996, 7, 9),
-                ShipCountry = "Belgium",
-                ShipCity = "Charleroi",
-                CustomerName = "Pascale Cartrain"
-            },
-            new SampleOrder {
-                OrderID = 10253,
-                OrderDate = new DateTime(1996, 7, 10),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Mario Pontes"
-            },
-            new SampleOrder {
-                OrderID = 10254,
-                OrderDate = new DateTime(1996, 7, 11),
-                ShipCountry = "Switzerland",
-                ShipCity = "Bern",
-                CustomerName = "Yang Wang"
-            },
-            new SampleOrder {
-                OrderID = 10255,
-                OrderDate = new DateTime(1996, 7, 12),
-                ShipCountry = "Switzerland",
-                ShipCity = "Genève",
-                CustomerName = "Michael Holz"
-            },
-            new SampleOrder {
-                OrderID = 10256,
-                OrderDate = new DateTime(1996, 7, 15),
-                ShipCountry = "Brazil",
-                ShipCity = "Resende",
-                CustomerName = "Paula Parente"
-            },
-            new SampleOrder {
-                OrderID = 10257,
-                OrderDate = new DateTime(1996, 7, 16),
-                ShipCountry = "Venezuela",
-                ShipCity = "San Cristóbal",
-                CustomerName = "Carlos Hernández"
-            },
-            new SampleOrder {
-                OrderID = 10258,
-                OrderDate = new DateTime(1996, 7, 17),
-                ShipCountry = "Austria",
-                ShipCity = "Graz",
-                CustomerName = "Roland Mendel"
-            },
-            new SampleOrder {
-                OrderID = 10259,
-                OrderDate = new DateTime(1996, 7, 18),
-                ShipCountry = "Mexico",
-                ShipCity = "México D.F.",
-                CustomerName = "Francisco Chang"
-            },
-            new SampleOrder {
-                OrderID = 10260,
-                OrderDate = new DateTime(1996, 7, 19),
-                ShipCountry = "Germany",
-                ShipCity = "Köln",
-                CustomerName = "Henriette Pfalzheim"
-            },
-            new SampleOrder {
-                OrderID = 10261,
-                OrderDate = new DateTime(1996, 7, 19),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Bernardo Batista"
-            },
-            new SampleOrder {
-                OrderID = 10262,
-                OrderDate = new DateTime(1996, 7, 22),
-                ShipCountry = "USA",
-                ShipCity = "Albuquerque",
-                CustomerName = "Paula Wilson"
-            },
-            new SampleOrder {
-                OrderID = 10263,
-                OrderDate = new DateTime(1996, 7, 23),
-                ShipCountry = "Austria",
-                ShipCity = "Graz",
-                CustomerName = "Roland Mendel"
-            },
-            new SampleOrder {
-                OrderID = 10264,
-                OrderDate = new DateTime(1996, 7, 24),
-                ShipCountry = "Sweden",
-                ShipCity = "Bräcke",
-                CustomerName = "Maria Larsson"
-            },
-            new SampleOrder {
-                OrderID = 10265,
-                OrderDate = new DateTime(1996, 7, 25),
-                ShipCountry = "France",
-                ShipCity = "Strasbourg",
-                CustomerName = "Frédérique Citeaux"
-            },
-            new SampleOrder {
-                OrderID = 10266,
-                OrderDate = new DateTime(1996, 7, 26),
-                ShipCountry = "Finland",
-                ShipCity = "Oulu",
-                CustomerName = "Pirkko Koskitalo"
-            },
-            new SampleOrder {
-                OrderID = 10267,
-                OrderDate = new DateTime(1996, 7, 29),
-                ShipCountry = "Germany",
-                ShipCity = "München",
-                CustomerName = "Peter Franken"
-            },
-            new SampleOrder {
-                OrderID = 10268,
-                OrderDate = new DateTime(1996, 7, 30),
-                ShipCountry = "Venezuela",
-                ShipCity = "Caracas",
-                CustomerName = "Manuel Pereira"
-            },
-            new SampleOrder {
-                OrderID = 10269,
-                OrderDate = new DateTime(1996, 7, 31),
-                ShipCountry = "USA",
-                ShipCity = "Seattle",
-                CustomerName = "Karl Jablonski"
-            },
-            new SampleOrder {
-                OrderID = 10270,
-                OrderDate = new DateTime(1996, 8, 1),
-                ShipCountry = "Finland",
-                ShipCity = "Oulu",
-                CustomerName = "Pirkko Koskitalo"
-            },
-            new SampleOrder {
-                OrderID = 10271,
-                OrderDate = new DateTime(1996, 8, 1),
-                ShipCountry = "USA",
-                ShipCity = "Lander",
-                CustomerName = "Art Braunschweiger"
-            },
-            new SampleOrder {
-                OrderID = 10272,
-                OrderDate = new DateTime(1996, 8, 2),
-                ShipCountry = "USA",
-                ShipCity = "Albuquerque",
-                CustomerName = "Paula Wilson"
-            },
-            new SampleOrder {
-                OrderID = 10273,
-                OrderDate = new DateTime(1996, 8, 5),
-                ShipCountry = "Germany",
-                ShipCity = "Cunewalde",
-                CustomerName = "Horst Kloss"
-            },
-            new SampleOrder {
-                OrderID = 10274,
-                OrderDate = new DateTime(1996, 8, 6),
-                ShipCountry = "France",
-                ShipCity = "Reims",
-                CustomerName = "Paul Henriot"
-            },
-            new SampleOrder {
-                OrderID = 10275,
-                OrderDate = new DateTime(1996, 8, 7),
-                ShipCountry = "Italy",
-                ShipCity = "Bergamo",
-                CustomerName = "Giovanni Rovelli"
-            },
-            new SampleOrder {
-                OrderID = 10276,
-                OrderDate = new DateTime(1996, 8, 8),
-                ShipCountry = "Mexico",
-                ShipCity = "México D.F.",
-                CustomerName = "Miguel Angel Paolino"
-            },
-            new SampleOrder {
-                OrderID = 10277,
-                OrderDate = new DateTime(1996, 8, 9),
-                ShipCountry = "Germany",
-                ShipCity = "Leipzig",
-                CustomerName = "Alexander Feuer"
-            },
-            new SampleOrder {
-                OrderID = 10278,
-                OrderDate = new DateTime(1996, 8, 12),
-                ShipCountry = "Sweden",
-                ShipCity = "Luleå",
-                CustomerName = "Christina Berglund"
-            },
-            new SampleOrder {
-                OrderID = 10279,
-                OrderDate = new DateTime(1996, 8, 13),
-                ShipCountry = "Germany",
-                ShipCity = "Frankfurt a.M.",
-                CustomerName = "Renate Messner"
-            },
-            new SampleOrder {
-                OrderID = 10280,
-                OrderDate = new DateTime(1996, 8, 14),
-                ShipCountry = "Sweden",
-                ShipCity = "Luleå",
-                CustomerName = "Christina Berglund"
-            },
-            new SampleOrder {
-                OrderID = 10281,
-                OrderDate = new DateTime(1996, 8, 14),
-                ShipCountry = "Spain",
-                ShipCity = "Madrid",
-                CustomerName = "Alejandra Camino"
-            },
-            new SampleOrder {
-                OrderID = 10282,
-                OrderDate = new DateTime(1996, 8, 15),
-                ShipCountry = "Spain",
-                ShipCity = "Madrid",
-                CustomerName = "Alejandra Camino"
-            },
-            new SampleOrder {
-                OrderID = 10283,
-                OrderDate = new DateTime(1996, 8, 16),
-                ShipCountry = "Venezuela",
-                ShipCity = "Barquisimeto",
-                CustomerName = "Carlos González"
-            },
-            new SampleOrder {
-                OrderID = 10284,
-                OrderDate = new DateTime(1996, 8, 19),
-                ShipCountry = "Germany",
-                ShipCity = "Frankfurt a.M.",
-                CustomerName = "Renate Messner"
-            },
-            new SampleOrder {
-                OrderID = 10285,
-                OrderDate = new DateTime(1996, 8, 20),
-                ShipCountry = "Germany",
-                ShipCity = "Cunewalde",
-                CustomerName = "Horst Kloss"
-            },
-            new SampleOrder {
-                OrderID = 10286,
-                OrderDate = new DateTime(1996, 8, 21),
-                ShipCountry = "Germany",
-                ShipCity = "Cunewalde",
-                CustomerName = "Horst Kloss"
-            },
-            new SampleOrder {
-                OrderID = 10287,
-                OrderDate = new DateTime(1996, 8, 22),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Janete Limeira"
-            },
-            new SampleOrder {
-                OrderID = 10288,
-                OrderDate = new DateTime(1996, 8, 23),
-                ShipCountry = "Italy",
-                ShipCity = "Reggio Emilia",
-                CustomerName = "Maurizio Moroni"
-            },
-            new SampleOrder {
-                OrderID = 10289,
-                OrderDate = new DateTime(1996, 8, 26),
-                ShipCountry = "UK",
-                ShipCity = "London",
-                CustomerName = "Victoria Ashworth"
-            },
-            new SampleOrder {
-                OrderID = 10290,
-                OrderDate = new DateTime(1996, 8, 27),
-                ShipCountry = "Brazil",
-                ShipCity = "Sao Paulo",
-                CustomerName = "Pedro Afonso"
-            },
-            new SampleOrder {
-                OrderID = 10291,
-                OrderDate = new DateTime(1996, 8, 27),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Bernardo Batista"
-            },
-            new SampleOrder {
-                OrderID = 10292,
-                OrderDate = new DateTime(1996, 8, 28),
-                ShipCountry = "Brazil",
-                ShipCity = "Sao Paulo",
-                CustomerName = "Anabela Domingues"
-            },
-            new SampleOrder {
-                OrderID = 10293,
-                OrderDate = new DateTime(1996, 8, 29),
-                ShipCountry = "Mexico",
-                ShipCity = "México D.F.",
-                CustomerName = "Miguel Angel Paolino"
-            },
-            new SampleOrder {
-                OrderID = 10294,
-                OrderDate = new DateTime(1996, 8, 30),
-                ShipCountry = "USA",
-                ShipCity = "Albuquerque",
-                CustomerName = "Paula Wilson"
-            },
-            new SampleOrder {
-                OrderID = 10295,
-                OrderDate = new DateTime(1996, 9, 2),
-                ShipCountry = "France",
-                ShipCity = "Reims",
-                CustomerName = "Paul Henriot"
-            },
-            new SampleOrder {
-                OrderID = 10296,
-                OrderDate = new DateTime(1996, 9, 3),
-                ShipCountry = "Venezuela",
-                ShipCity = "Barquisimeto",
-                CustomerName = "Carlos González"
-            },
-            new SampleOrder {
-                OrderID = 10297,
-                OrderDate = new DateTime(1996, 9, 4),
-                ShipCountry = "France",
-                ShipCity = "Strasbourg",
-                CustomerName = "Frédérique Citeaux"
-            }
-        };
+        public static List<Customer> Customers = new List<Customer>
+    {
+        new Customer
+        {
+            ID = 1,
+            CompanyName = "",
+            Address = "702 SW 8th Street",
+            City = "Bentonville",
+            State = "Arkansas",
+            Zipcode = 72716,
+            Phone = "123456",
+            Fax = "(800) 555-2171",
+            Website = "http://www.nowebsitesupermart.com"
+        },
+        new Customer
+        {
+            ID = 2,
+            CompanyName = "Electronics Depot",
+            Address = "2455 Paces Ferry Road NW",
+            City = "NYC",
+            State = "Georgia",
+            Zipcode = 30339,
+            Phone = "(800) 595-3232",
+            Fax = "(800) 595-3231",
+            Website = "http://www.nowebsitedepot.com"
+        }
+    };
     }
 }
diff --git a/ASP.NET Core/Models/SampleOrder.cs b/ASP.NET Core/Models/SampleOrder.cs
index 7f10198..1673dc5 100644
--- a/ASP.NET Core/Models/SampleOrder.cs	
+++ b/ASP.NET Core/Models/SampleOrder.cs	
@@ -1,16 +1,34 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace ASP_NET_Core.Models {
-    public class SampleOrder {
-        public int OrderID { get; set; }
-        public DateTime OrderDate { get; set; }
-        public string CustomerID { get; set; }
-        public string CustomerName { get; set; }
-        public string ShipCountry { get; set; }
-        public string ShipCity { get; set; }
+    public class Customer
+    {
+        
+        public int ID { get; set; }
+
+        [Required]
+        public string CompanyName { get; set; }
+
+        public string Address { get; set; }
+
+        [StringLength(int.MaxValue, MinimumLength = 4, ErrorMessage = "City must have at least 2 symbols")]
+        public string City { get; set; }
+
+        public string State { get; set; }
+
+        public int Zipcode { get; set; }
+
+        [Required]
+        [RegularExpression(@"^\(\d{3}\)\ \d{3}-\d{4}$", ErrorMessage = @"Your phone must have ""(555) 555-5555"" format!")]
+        public string Phone { get; set; }
+
+        public string Fax { get; set; }
+
+        public string Website { get; set; }
     }
 }
diff --git a/ASP.NET Core/Views/Home/Index.cshtml b/ASP.NET Core/Views/Home/Index.cshtml
index 672571d..94dae9a 100644
--- a/ASP.NET Core/Views/Home/Index.cshtml	
+++ b/ASP.NET Core/Views/Home/Index.cshtml	
@@ -2,28 +2,67 @@
 
 <h2>Home</h2>
 
-@(Html.DevExtreme().DataGrid<SampleOrder>()
-    .ShowBorders(true)
-    .DataSource(d => d.Mvc().Controller("SampleData").LoadAction("Get").Key("OrderID"))
-    .Columns(columns => {
-        columns.AddFor(m => m.OrderID);
-        columns.AddFor(m => m.OrderDate);
-        columns.AddFor(m => m.CustomerName);
-        columns.AddFor(m => m.ShipCountry);
-        columns.AddFor(m => m.ShipCity);
+@(Html.DevExtreme().DataGrid<Customer>()
+    .ID("gridContainer")
+    .DataSource(d => d.Mvc()
+    .Controller("SampleData")
+    .LoadAction("Get")
+    .UpdateAction("Put")
+    .Key("ID"))
+    .Editing(e =>
+    {
+        e.AllowUpdating(true);
+        e.Mode(GridEditMode.Batch);
+    })
+    .Columns(columns =>
+    {
+        columns.AddFor(m => m.CompanyName);
+        columns.AddFor(m => m.City);
+        columns.AddFor(m => m.Phone);
+        columns.AddFor(m => m.Fax);
+        columns.AddFor(m => m.State);
     })
-    .Paging(p => p.PageSize(10))
-    .FilterRow(f => f.Visible(true))
-    .HeaderFilter(f => f.Visible(true))
-    .GroupPanel(p => p.Visible(true))
-    .Grouping(g => g.AutoExpandAll(false))
-    .RemoteOperations(true)
-    .Summary(s => s
-        .TotalItems(totalItems => {
-            totalItems.AddFor(m => m.ShipCity).SummaryType(SummaryType.Count);
-        })
-        .GroupItems(groupItems => {
-            groupItems.Add().SummaryType(SummaryType.Count);
-        })
-    )
-)
\ No newline at end of file
+    .Toolbar(toolbar =>
+    {
+        toolbar.Items(items =>
+        {
+        items.Add()
+         .Name("validate")
+         .Widget(w =>
+           w.Button()
+             .Text("Validate DataGrid")
+             .StylingMode(ButtonStylingMode.Outlined)
+             .OnClick("validateVisibleRows"));
+         items.Add().Name("saveButton");
+         items.Add().Name("revertButton");
+        });
+    })
+    .ShowBorders(true)
+)
+
+<script>
+    function validateVisibleRows() {
+        const grid = $("#gridContainer").dxDataGrid("instance");
+        const currentChanges = grid.option("editing.changes");
+        const fakeChanges = grid.getVisibleRows().map(function (row) {
+            return { type: "update", key: row.data.ID, data: {} };
+        });
+
+        grid.option("editing.changes", [...currentChanges, ...fakeChanges]);
+        grid.repaint();
+
+        grid.getController("validating").validate(true).then(function (result) {
+            const message = result ? "Validation is passed" : "Validation is failed";
+            const type = result ? "success" : "error";
+            DevExpress.ui.notify({
+                message: message,
+                type: type,
+                position: {
+                    offset: "0 50",
+                    at: "bottom",
+                    of: ".demo-container",
+                },
+            });
+        });
+    }
+</script>
diff --git a/README.md b/README.md
index 9687e9f..3e99775 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,4 @@
 <!-- default badges list -->
-![](https://img.shields.io/endpoint?url=https://codecentral.devexpress.com/api/v1/VersionRange/723096689/23.1.3%2B)
 [![](https://img.shields.io/badge/Open_in_DevExpress_Support_Center-FF7200?style=flat-square&logo=DevExpress&logoColor=white)](https://supportcenter.devexpress.com/ticket/details/T1202789)
 [![](https://img.shields.io/badge/📖_How_to_use_DevExpress_Examples-e9f6fc?style=flat-square)](https://docs.devexpress.com/GeneralInformation/403183)
 <!-- default badges end -->