I need help getting the collections to show up in the property window of a
user control. I want to be able to edit the collection items just like any
other asp.net control that has collection properties (i.e. The ASP:Table
control). This is for a menu system. The collections are working when the
classes are called directly, but not as a user control. Any advice is
appreciated.
Code:
------
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Collections;
namespace DropDownMenuControl
{
/// <summary>
/// Summary description for DropDownMenu.
/// </summary>
[DefaultProperty("Text"),
ToolboxData("<{0}:DropDownMenu runat=server></{0}:DropDownMenu>")]
public class DropDownMenu : System.Web.UI.WebControls.WebControl
{
private MenuList menuList = null;
private string text = string.Empty;
[
DesignerSerializationVisibility(DesignerSerializat ionVisibility.Content),
PersistenceMode(PersistenceMode.InnerProperty),
NotifyParentProperty(true)
]
public MenuList Menu
{
get
{
if(menuList == null)
{
menuList = new MenuList();
}
return menuList;
}
}
[Bindable(true),
Category("Appearance"),
DefaultValue("")]
public string Text
{
get
{
return text;
}
set
{
text = value;
}
}
/// <summary>
/// Render this control to the output parameter specified.
/// </summary>
/// <param name="output"> The HTML writer to write out to </param>
protected override void Render(HtmlTextWriter output)
{
output.Write(Text);
}
}
public class MenuList
{
private MenuCategories categories = new MenuCategories();
public MenuList()
{
//
// TODO: Add constructor logic here
//
}
public MenuCategories MenuCategories
{
get
{
return categories;
}
set
{
categories = value;
}
}
public void AddCategory(MenuCategory menuCategory)
{
categories.AddCategory(menuCategory);
}
}
public class MenuCategories : IEnumerable
{
private ArrayList categories = new ArrayList();
public MenuCategories()
{
//
// TODO: Add constructor logic here
//
}
public int Count
{
get
{
return categories.Count;
}
}
public void AddCategory(MenuCategory category)
{
categories.Add(category);
}
public IEnumerator GetEnumerator()
{
return new MenuCategoriesEnumerator(categories);
}
}
public class MenuCategoriesEnumerator : IEnumerator
{
private ArrayList categories = new ArrayList();
private int position = -1;
public MenuCategoriesEnumerator(ArrayList categories)
{
this.categories = categories;
}
public object Current
{
get
{
return categories[position];
}
}
public bool MoveNext()
{
if (position < categories.Count - 1)
{
position ++;
return true;
}
else
{
return false;
}
}
public void Reset()
{
position = -1;
}
}
public class MenuCategory
{
private MenuCommands commands = new MenuCommands();
//private ArrayList categories = new ArrayList();
public MenuCategory()
{
//
// TODO: Add constructor logic here
//
}
public string HeaderText = string.Empty;
public string HeaderUrl = string.Empty;
public MenuCommands Commands
{
get
{
return commands;
}
set
{
commands = value;
}
}
public void AddCommand(MenuCommand menuCommand)
{
commands.AddCommand(menuCommand);
}
}
public class MenuCommands : IEnumerable
{
private ArrayList commands = new ArrayList();
public MenuCommands()
{
//
// TODO: Add constructor logic here
//
}
public int Count
{
get
{
return commands.Count;
}
}
public void AddCommand(MenuCommand menuCommand)
{
commands.Add(menuCommand);
}
public IEnumerator GetEnumerator()
{
return new MenuCommandsEnumerator(commands);
}
}
public class MenuCommandsEnumerator : IEnumerator
{
private ArrayList commands = new ArrayList();
private int position = -1;
public MenuCommandsEnumerator(ArrayList menuCommands)
{
commands = menuCommands;
}
public object Current
{
get
{
return commands[position];
}
}
public bool MoveNext()
{
if (position < commands.Count - 1)
{
position ++;
return true;
}
else
{
return false;
}
}
public void Reset()
{
position = -1;
}
}
public class MenuCommand
{
private string text = "";
private string url = "";
/// <summary>
/// Create a new menu command
/// </summary>
/// <param name="commandText">Text that is displayed in the menu
command</param>
/// <param name="commandUrl">The url that the menu command
launches</param>
public MenuCommand(string commandText, string commandUrl)
{
text = commandText;
url = commandUrl;
}
/// <summary>
/// Text that is displayed in the menu command
/// </summary>
public string Text
{
get
{
return text;
}
set
{
text = value;
}
}
/// <summary>
/// The url that the menu command launches
/// </summary>
public string Url
{
get
{
return url;
}
set
{
url = value;
}
}
}
}
--
Jay Douglas
Fort Collins, CO
