4
Answers

From dropdown list we chose the item particluar field name should be shown in text box using asp.net c#

from dropdown list we chose the item particluar field name should be shown in text box using asp.net c#.




Answers (4)
0
Satyapriya Nayak

Satyapriya Nayak

NA 53k 8m 12y
Hi Selvi,



Try this...

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Dropdownlist_click_data_in_textbox._Default" %>

<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:DropDownList ID="DropDownList1" runat="server"
            onselectedindexchanged="DropDownList1_SelectedIndexChanged">
        </asp:DropDownList><br />
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    </div>
   
    </form>
</body>
</html>





using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
namespace Dropdownlist_click_data_in_textbox
{
    public partial class _Default : System.Web.UI.Page
    {
        string strConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
        string str;
        SqlCommand com;
        protected void Page_Load(object sender, EventArgs e)
        {
            DropDownList1.AutoPostBack = true;
            SqlConnection con = new SqlConnection(strConnString);

            if (!IsPostBack)
            {
                DropDownList1.Items.Add("Choose id");
                con.Open();
                str = "select * from  test";
                com = new SqlCommand(str, con);
                SqlDataReader reader = com.ExecuteReader();
                while (reader.Read())
                {
                    DropDownList1.Items.Add(reader["id"].ToString());
                }
                reader.Close();
                con.Close();
            }
        }

        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            SqlConnection con = new SqlConnection(strConnString);
            con.Open();
            str = "select * from test where id='" + DropDownList1.SelectedItem.Text + "'";
            com = new SqlCommand(str, con);
            SqlDataReader reader = com.ExecuteReader();
            while (reader.Read())
            {
                TextBox1.Text = reader["name"].ToString();
               
            }
            reader.Close();
            con.Close();
        }
    }
}





Thanks
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Accepted
0
selvi subramanian

selvi subramanian

NA 818 424.4k 12y
thanks satya
0
selvi subramanian

selvi subramanian

NA 818 424.4k 12y
ya thanks senthil
0
Senthilkumar

Senthilkumar

NA 15.2k 2.4m 12y
Hi Selvi,

If you have only requirement to fill in the textbox of selected item then i recommend to do in javascript.

In design,

<asp:DropDownList ID="DropDownList1" runat="server" 
            onchange="AssignValue();">
        </asp:DropDownList><br />
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>


In javascript,

function AssignValue()
{
        //Assign the value
        var e = document.getElementById(" DropDownList1 ");
        var strUser = e.options[e.selectedIndex].value;

         //Assign the text
         var e = document.getElementById(" DropDownList1 ");
        var strUser = e.options[e.selectedIndex].text;

        document.getElementById('TextBox1').value = strUser;
        return false;
}


Hope this will help you.
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