Select Data Using Model Binders in .NET 4.5

Introduction

Today, in this article let's play around with one of the interesting and most useful concepts in .NET 4.5.

Question: What are model binders?

In simple terms "It is a data binding system which is used to perform some common operations based on the data retrieved from a model class with strongly typed invocations".

Step 1: Create a new "ASP.Net Web Forms Application", as in:

New-project-in-asp.net.jpg

Step 2: The complete code of webform1.aspx looks like this:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="ModelBindersSelectApp.WebForm1" %>

<!DOCTYPE html>

</head>

<body>

<div>

<asp:GridView ID="GridView1" runat="server" BackColor="LightGoldenrodYellow" ItemType="ModelBindersSelectApp.Employee"

BorderColor="Tan" BorderWidth="1px" CellPadding="2" ForeColor="Black" GridLines="None"

AutoGenerateColumns="false" SelectMethod="GetData">

</PagerStyle>

<asp:TemplateField HeaderText="Id">

<asp:Label ID="lblId" runat="server" Text='<%# Item.Id %>'></asp:Label></ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="First Name">

<asp:Label ID="lblFirstName" runat="server" Text='<%# Item.FirstName %>'></asp:Label></ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Last Name">

<asp:Label ID="lblLastName" runat="server" Text='<%# Item.LastName %>'></asp:Label></ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Age">

<asp:Label ID="lblAge" runat="server" Text='<%# Item.Age %>'></asp:Label></ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

</div>

</center>

</form>

</body>

</html>

Step 3: The complete code of webform1.aspx.cs looks like this:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace ModelBindersSelectApp

{

public partial class WebForm1 : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

public IQueryable GetData()

{return objEntities.Employee;

}

#region Instance VariablesCompanyEntities objEntities = new CompanyEntities();

#endregion

}

}

Step 4: The output of the application looks like this:

Output-of-the-application-in-asp.net.jpg

Select Data Using Model Binders in .NET 4.5

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