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Thursday, September 19, 2013
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How to use DataRow class in ASP.NET

1:33 AMThursday, September 19, 2013
Lets take an example to bind DropDownList using DataRow class.

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default4.aspx.cs" Inherits="Default4" %>

<!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:Button ID="Button1" runat="server" Height="37px" onclick="Button1_Click"
            Text="Bind DropDownList" Width="130px" />
        <br />
        <br />
        <asp:DropDownList ID="DropDownList1" runat="server">
        </asp:DropDownList>
    </div>

    </form>
</body>
</html>

Codebehind
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;

public partial class Default4 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        
        
        using (SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True"))
        {
            con.Open();
            SqlCommand cmd = new SqlCommand("select * from [mytab]", con);
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            DataTable dt = new DataTable();
            
                        da.Fill(dt);
                        if (DropDownList1.Items.Capacity == 0)
                        {
                            foreach (DataRow dr in dt.Rows)
                            {
                                string name = dr["name"].ToString();


                                DropDownList1.Items.Add(name);


                            }
                        }
     
        }
    }
}

Output
How to use DataRow class in ASP.NET

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