Compilation Error in the model- JQGRID ASP.NET MVC
===

I want to implement CRUD operations using JQGrid. I am following tutorial from here.

[JqGrid][1].

I have added a new MVC3  Project using VS 2010. I have added the model called **OrdersJqGridModel** to the model folder in the project. I have not changed the default folder layouts.

This is the code it looks in the model

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using Trirand.Web.Mvc;
    using System.Web.UI.WebControls;
    
    namespace JQGridMVCExamples.Models
    {
        public class OrdersJqGridModel
        {
            public JQGrid OrdersGrid { get; set; }
    
            public OrdersJqGridModel()
            {            
                OrdersGrid = new JQGrid
                                 {
                                     Columns = new List() //using the generic type System.Collections.Generic.List<T> requires 1 type arguments- **ERROR HERE**
                                     {
                                         new JQGridColumn { DataField = "OrderID", 
                                                            // always set PrimaryKey for Add,Edit,Delete operations
                                                            // if not set, the first column will be assumed as primary key
                                                            PrimaryKey = true,
                                                            Editable = false,
                                                            Width = 50 },                                    
                                         new JQGridColumn { DataField = "CustomerID", 
                                                            Editable = true,
                                                            Width = 100 },
                                         new JQGridColumn { DataField = "OrderDate",                                                         
                                                            Editable = true,
                                                            Width = 100, 
                                                            DataFormatString = "{0:yyyy/MM/dd}" },
                                         new JQGridColumn { DataField = "Freight", 
                                                            Editable = true,
                                                            Width = 75 },
                                         new JQGridColumn { DataField = "ShipName",
                                                            Editable =  true
                                                          }                                     
                                     },
                                     Width = Unit.Pixel(640),
                                     Height = Unit.Percentage(100)
                                 };
    
                OrdersGrid.ToolBarSettings.ShowRefreshButton = true;            
            }
            
        }
    }

  [1]: http://www.trirand.net/demoaspnetmvc.aspx
**ERROR:**
It complains with the following error
using the generic type System.Collections.Generic.List<T> requires 1 type arguments- 
**Can anyone point me, why this error  is happening?** 

I have used builtin MVC3 web grid before, but I need to implement builtin CRUD operations.

Can anyone point me any other inline crud operations tutorail using Grid in asp.net MVC

Thank you



