?
Solved

Populate textbox from dropdown control selection asp.net visual studio 2008

Posted on 2008-06-17
1
Medium Priority
?
496 Views
Last Modified: 2013-11-26
I have a dropdown control with a number of options in asp.net page

If I select an option from the dropdown list I want to the selected text of the dropdown to be appended to a multi line textbox on the same form.

If I select another option from the dropdown control I want that selected text to also be appended to the textbox.  So the end result would be a multi line text box populated with say upto 6 lines.

I need a quick over view demo not a link to another site

Thanks

0
Comment
Question by:mugsey
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 53

Accepted Solution

by:
Dhaest earned 2000 total points
ID: 21800689
A very easy example
ASPX-file
---------
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_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">
    <asp:DropDownList ID="DropDownList1" runat="server" 
        onselectedindexchanged="DropDownList1_SelectedIndexChanged" 
        AutoPostBack="True">
        <asp:ListItem>Item1</asp:ListItem>
        <asp:ListItem>Item2</asp:ListItem>
        <asp:ListItem Value="Item3"></asp:ListItem>
        <asp:ListItem>Item4</asp:ListItem>
        <asp:ListItem>Item5</asp:ListItem>
        <asp:ListItem>Item6</asp:ListItem>
        <asp:ListItem>Item7</asp:ListItem>
    </asp:DropDownList>
    <p>
    <asp:TextBox ID="TextBox1" runat="server" Height="141px" Rows="6" 
            TextMode="MultiLine"></asp:TextBox>
    </p>
    </form>
</body>
</html>
 
 
ASPX.CS-file
------------
using System;
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;
 
public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
 
 
 
        if (!Page.IsPostBack)
        {
        }
 
    }
 
    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        TextBox1.Text += DropDownList1.SelectedValue + System.Environment.NewLine;
    }
    
 
}

Open in new window

0

Featured Post

TCP/IP Network Protocol Cheat Sheet

TCP/IP is a set of network protocols which is best known for connecting the machines that make up the Internet. The truth is that TCP/IP is one of the oldest network protocols and its survival is mainly based on its simplicity and universality.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Wouldn’t it be nice if you could test whether an element is contained in an array by using a Contains method just like the one available on List objects? Wouldn’t it be good if you could write code like this? (CODE) In .NET 3.5, this is possible…
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question