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Sunday, June 8, 2014
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How to bind Gridview using strong model binding in asp.net

12:43 AMSunday, June 8, 2014
In our previous article, we have already learn how to bind GridView using ado.net, Entityframework, etc. Now, today we will learn strong model binding. Follow my steps
Step-1 :  Create a course.cs class, which is include in my previous article
Step-2 : Create a another class, which named as DataContext.cs class also include in my previous article.
Step-3 : After adding the two class in the project , add a new web form, which named as "getItem.aspx".
Step-4 : Add GridView control on web form
Step-5 :  Your source code looking like this

<form id="form1" runat="server">
    <div>
    
    </div>
        <asp:GridView ID="GridView1" runat="server" DataKeyNames ="ID" AutoGenerateColumns="false" ItemType="course" SelectMethod="getCourse">
            <Columns>
                
                <asp:BoundField DataField="ID" HeaderText="Course_Id" />
                  <asp:BoundField DataField="ccode" HeaderText="Course_code" />
                 <asp:BoundField DataField="cname" HeaderText="Course_Name" />


            </Columns>
        </asp:GridView>
    </form>

Here we add two extra attribute, which names as SelectMethod and ItemType. ItemType define the whole structure of your code. Suppose your course class inside in a namespace then your ItemType is
namespace.class name. Using the select method you can retrieve table data from database.

Step-6 : copy this code and paste into your code behind page

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class getitem : System.Web.UI.Page
{
    private readonly DataContext dc = new DataContext();
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    public IQueryable<course> getCourse()
    {
        return dc.courses;
    }

}
First to create DataContext object, which is used for retrieving data from database. Also create Select method which return  IQueryable type.

Code generate the following output

How to bind Gridview using strong model binding in asp.net
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