help with the following code

help with the following code

• stephenl

  Thanks for replying to my post. I appreciate the help and information.

  I'm just learning asp.net and object oriented programming. I had a couple of questions regarding the code I wrote below.
  
  
  Here is the control:
  
  <ul>
  <asp:Repeater id="Repeater1" runat="server">
  <ItemTemplate>
  <li><a href='<%# DataBinder.Eval(Container.DataItem, "URL") %>'><%# DataBinder.Eval(Container.DataItem, "DisplayText") %></a></li>
  </ItemTemplate>
  </asp:Repeater>
  </ul>
  
  
  
  Here is the code-behind:
  
  namespace compass.user_controls
  {
  using System;
  using System.Collections;
  using System.Data;
  using System.Drawing;
  using System.Web;
  using System.Web.UI.WebControls;
  using System.Web.UI.HtmlControls;
  
  /// <summary>
  /// Summary description for TopNavBar.
  /// </summary>
  public class TopNavBar : System.Web.UI.UserControl
  {
  protected System.Web.UI.WebControls.Repeater Repeater1;
  
  public class PositionData
  {
  private string strText;
  private string strUrl;
  
  public PositionData(string strDisplayText, string strURL)
  {
  this.strText = strDisplayText;
  this.strUrl = strURL;
  }
  
  public string DisplayText
  {
  get { return strText; }
  }
  
  public string URL
  {
  get { return strUrl; }
  }
  }
  
  
  private void Page_Load(object sender, System.EventArgs e)
  {
  // Put user code to initialize the page here
  
  ArrayList MenuItems = new ArrayList();
  
  MenuItems.Add(new PositionData("About Us", "About.aspx"));
  MenuItems.Add(new PositionData("Contact Us", "Contact.aspx"));
  MenuItems.Add(new PositionData("Customer Support", "Support.aspx"));
  MenuItems.Add(new PositionData("Site Map", "sitemap.aspx"));
  
  Repeater1.DataSource = MenuItems;
  Repeater1.DataBind();
  
  
  }
  
  }
  }
  
  Do I need to create a new class for every new object that I create I thought I could use the 'TopNavBar' class to define the properties and method I have listed in the 'PositionData' class. Why is it necessary to define the new class 'PositionData' to declare the properties and method Would it be more efficient to create a seperate class file to define these properties and methods and reference the class file in the code-behind file. If so, how would I reference the the class file method and properties in the code-behind file
  
  The main question I had is why I needed to define the new class 'PositionData' to define the properties and method.
  
  My next step is to dynamically populate the arraylist from a database table instead of using hard-coded values.
  
  I'm just trying to get a better understanding on the fundamentals of the code.
  
  Thanks again for the help.
  Regards,
  -D-

  
  

• DeveloperFrankie

  of note. . . a difference between vb and csharp:

  C-Sharp does not suppport declarative event handling, you have to explicitly set the handler with a += operation.

  This is actually a good thing. . . I was enlightened to the fact that VB's declarative event handling is a major performance hog. not a big thing in winforms, but in web apps, it can cause a performance issue.

  in this case, you can override OnLoad (the preferred method of doing it):

  private override void OnLoad(System.EventArgs e)

  {

      base.OnLoad(e);

      ArrayList MenuItems = new ArrayList();

      MenuItems.Add(new PositionData("About Us", "About.aspx"));

      MenuItems.Add(new PositionData("Contact Us", "Contact.aspx"));

      MenuItems.Add(new PositionData("Customer Support", "Support.aspx"));

      MenuItems.Add(new PositionData("Site Map", "sitemap.aspx"));

      //Repeater1.DataSource = MenuItems;

      //Repeater1.DataBind();

  }

   

  
  
  

• Satish33

  If you want to accomplish this easily download Lutz Roeder's Reflector from this site:

  http://www.aisto.com/roeder/dotnet/

  You can view an assembly (ddll/exe) and choose the language to display it in (C# VB Delphi IL) and just copy that.

  Thus if you write a program in VB and wonder what it would look like in C#, you can do so very easily.

  
  
  

• Juliano.net

  using System.Collections;

  public class PositionData

  {

  private string strText;

  private string strUrl;

  public PositionData(string strDisplayText, string strURL)

  {

  this.strText = strDisplayText;

  this.strUrl = strURL;

  }

  public string DisplayText

  {

  get

  {

  return strText;

  }

  }

  public string URL

  {

  get

  {

  return strUrl;

  }

  }

  }

  private void Page_Load(System.Object sender, System.EventArgs e)

  {

  ArrayList MenuItems = new ArrayList();

  
  MenuItems.Add(new PositionData("About Us", "About.aspx"));

  MenuItems.Add(new PositionData("Contact Us", "Contact.aspx"));

  MenuItems.Add(new PositionData("Customer Support", "Support.aspx"));

  MenuItems.Add(new PositionData("Site Map", "sitemap.aspx"));

  //Repeater1.DataSource = MenuItems;

  //Repeater1.DataBind();

  }

  
  
  
• help with the following code