Dropdownlist just retrieving objects and dynamically show in Ajax Text box - sql

Question

So Im starting as a new ASP Developer (been using Java for a bit, but now project demands ASP), so bare a little with my ignorance :( .
What I am trying to do is create a dynamic dropdown list from a table I got in SQL SERVER and depending on what you choose on the list show the information on the txt editor (In theory shouldnt be so hard, but since I just started, it just does not seem so easy). I created the entity for it, the data for it and the bussiness logic for it and the interconnection (It is already reading and retrieving from the DB, but just a list). Here is, what I have doing so hard.
Entity.Messages
public class Messages
{
public int id { get; set; }
public string title { get; set; }
public string subject { get; set; }
public string body { get; set; }
public string createdBy { get; set; }
public Messages()
{
id = 0;
title = "";
subject = "";
body = "";
createdBy = "";
}
public Messages(int idMessages)
{
idMessages = id;
title = "";
subject = "";
body = "";
createdBy = "";
}
}
}
Data.Messages
public class Messages : Data
{
public Messages() : base()
{
}
public List<Entity.Messages> GetAll()
{
List<Entity.Messages> message = new List<Entity.Messages>();
//SQL Command para llamar el stored procedure
SqlCommand comando = new SqlCommand("dbo.[Messages_GetAll]", base.Db);
//Ejecuta consulta
DataTable dtItem = base.Execute(comando);
//Transforma el Datatable en una lista de proyectos.
foreach (DataRow dr in dtItem.Rows)
message.Add(GetFromDataRow(dr));
return message;
}
public Entity.Messages GetById(int id)
{
Entity.Messages m = new Entity.Messages();
//SQL Command para llamar el stored procedure
SqlCommand comando = new SqlCommand("dbo.[Messages_GetById]", base.Db);
//parametros del store procedure
SqlParameter spKey = new SqlParameter("#Id", System.Data.SqlDbType.Int);
spKey.Value = id;
comando.Parameters.Add(spKey);
//Ejecuta consulta
DataTable dt = base.Execute(comando);
if (dt.Rows.Count > 0)
m = GetFromDataRow(dt.Rows[0]);
return m;
}
private ASF.HC.JobApplication.Entity.Messages GetFromDataRow(DataRow dr)
{
Entity.Messages m = new Entity.Messages();
m.id = dr["Id"] == DBNull.Value ? -1 : int.Parse(dr["Id"].ToString());
m.title = dr["Title"] == DBNull.Value ? "" : dr["Title"].ToString();
m.subject = dr["Subject"] == DBNull.Value ? "" : dr["Subject"].ToString();
m.body = dr["Body"] == DBNull.Value ? "" : dr["Body"].ToString();
m.createdBy = dr["createdBy"] == DBNull.Value ? "" : dr["createdBy"].ToString();
return m;
}
}
BO.Messages
public class Messages
{
public Entity.Messages GetByID(int id)
{
Data.Messages oMessage = new Data.Messages();
return oMessage.GetById(id);
}
public List<Entity.Messages> GetAll()
{
Data.Messages oMessage = new Data.Messages();
return oMessage.GetAll();
}
And where Im trying to display it, I see the DropDownList and well I see the List with the objects, but I want to display is the title.
MEssage.aspx
<%# Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Messages.aspx.cs" Inherits="ASF.HC.JobApplication.Admin.Messages" %>
<%# Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="ajaxToolkit" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2>Messages</h2>
<asp:ScriptManager ID="ScriptManager2" runat="server"></asp:ScriptManager>
<legend>Pick the template to use:</legend>
<asp:dropdownlist id ="ddlTemplate" runat ="server" Height="38px" Width="397px">
<asp:listitem value ="1"> Juan Valdez </asp:listitem >
<asp:listitem Value ="2"> Querido bebe</asp:listitem>
</asp:dropdownlist >
<p> </p>
<asp:TextBox ID ="txtDetails" runat="server" Width="600px" Height="300px" Visible="true" ></asp:TextBox>
<ajaxToolkit:HtmlEditorExtender ID="TextBox1_HtmlEditorExtender" runat="server" TargetControlID="txtDetails"
EnableSanitization="false" DisplaySourceTab="true" >
</ajaxToolkit:HtmlEditorExtender>
</asp:Content>
Messages.aspx.cs
public partial class Messages : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
loadList();
}
public void loadList()
{
BO.Messages template = new BO.Messages();
ddlTemplate.DataSource = template.GetAll();
ddlTemplate.DataBind();
}
}
}
Im trying to go step by step, but first I wanna see the value and not the objects, and according to what I choose to see the Body field Displayed on the text field on Ajax. But first, and most importantly, show the title field on the dropdownlist :(
EDIT: So I got to show the Title instead of all the object. But now, do you guys know any way to as soon as I choose the title, to have it displayed on the Text from ajax? Like dynamically? Any point would be greatly appreciated.
Any help or pointer would be greatly appreciated.
Thanks!

Answer 1

Apparently, all I needed was to map the datavalue and datatext field.