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Thursday, September 26, 2013
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How to Bind DropDownList using Complex DataType in ASP.NET

8:54 AMThursday, September 26, 2013
Step-1: Define class properties in class
Step-2: Create a List<DataType> object in code file.
Step-3: Add fields to the list.
Step-4: Bind DropDownlist with list
Step-5: Assign DataMember to the DropDownList.


Create a class file in ASP.NET
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// Summary description for Fruits
/// </summary>
public class Fruits
{
    public string  Fruits_Name { get; set; }
    public decimal Fruits_price { get; set; }
 

Take a DropDownList on Design window
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="Default5" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:DropDownList ID="DropDownList1" runat="server">
        </asp:DropDownList>
    </div>
    </form>
</body>
</html>

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

public partial class Default5 : System.Web.UI.Page
{
    List<Fruits> listitem = new List<Fruits>();

    protected void Page_Load(object sender, EventArgs e)
    {
        listitem.Add(new Fruits() { Fruits_Name = "Apple", Fruits_price = 45.40M });
        listitem.Add(new Fruits() { Fruits_Name = "Mango", Fruits_price = 30.40M });
        listitem.Add(new Fruits() { Fruits_Name = "Orange", Fruits_price = 36.40M });
        listitem.Add(new Fruits() { Fruits_Name = "grapes", Fruits_price = 89.40M });
        DropDownList1.DataSource = listitem;
       DropDownList1.DataTextField = "Fruits_Name";
        DropDownList1.DataBind();

    }
}

Output
How to Bind DropDownList using Complex DataType in ASP.NET

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