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GoalBook - A Hybrid Smart Client

, 25 Sep 2009
A WPF hybrid smart client that synchronises your goals with the Toodledo online To-do service.
GoalBook.zip
GoalBook
Dependencies
CAG WPF 2
Microsoft.Practices.Composite.dll
Microsoft.Practices.Composite.Presentation.dll
Microsoft.Practices.Composite.UnityExtensions.dll
Microsoft.Practices.ObjectBuilder2.dll
Microsoft.Practices.ServiceLocation.dll
Microsoft.Practices.Unity.dll
vssver2.scc
CSLA
Csla.dll
Csla.XmlSerializers.dll
vssver2.scc
Infragistics
Infragistics3.Wpf.DataPresenter.v9.1.Express.dll
Infragistics3.Wpf.Editors.v9.1.Express.dll
Infragistics3.Wpf.v9.1.Express.dll
vssver2.scc
WPFToolkit
vssver2.scc
WPFToolkit.dll
GoalBook.Controls
CheckedList
vssver2.scc
Properties
vssver2.scc
vssver2.scc
GoalBook.Goals
GoalBook.Goals.csproj.user
Properties
vssver2.scc
Views
vssver2.scc
vssver2.scc
GoalBook.Infrastructure
Comparers
vssver2.scc
Constants
vssver2.scc
Controls
Converters
vssver2.scc
Enums
vssver2.scc
Events
vssver2.scc
GoalBook.Infrastructure.csproj.user
Helpers
vssver2.scc
Interfaces
vssver2.scc
ObjectModel
vssver2.scc
Printing
vssver2.scc
Properties
vssver2.scc
vssver2.scc
GoalBook.Notes
GoalBook.Notes.csproj.user
Properties
vssver2.scc
Resources
arrow_redo.png
arrow_undo.png
cut.png
page_copy.png
paste_plain.png
text_bold.png
text_indent.png
text_indent_remove.png
text_italic.png
text_list_bullets.png
text_list_numbers.png
vssver2.scc
world_link.png
Views
vssver2.scc
vssver2.scc
GoalBook.Public
Encryption
vssver2.scc
HtmlConverter
vssver2.scc
HtmlParser
vssver2.scc
Misc
vssver2.scc
Properties
vssver2.scc
vssver2.scc
GoalBook.Shell
App.ico
Commands
vssver2.scc
GoalBook.Shell.csproj.user
Journal.ico
Journal48.ico
Misc
vssver2.scc
Modules
vssver2.scc
Properties
licenses.licx
vssver2.scc
Resources
arrow_refresh.png
arrow_undo.png
checked.gif
cross.png
disk.png
email.png
erase.png
error.png
exclamation.png
flag_red.png
group.png
help.png
information.png
magnifier.png
page_red.png
pencil.png
printer.png
user.png
vssver2.scc
Wave.jpg
world.png
world_link.png
Services
vssver2.scc
Splash.png
Views
vssver2.scc
vssver2.scc
Windows
vssver2.scc
GoalBook.snk
GoalBook.Synchronisation
Events
vssver2.scc
Properties
vssver2.scc
ToodleDo
vssver2.scc
vssver2.scc
GoalBook.Tasks
Controls
vssver2.scc
Properties
vssver2.scc
Views
vssver2.scc
vssver2.scc
vssver2.scc
// <copyright file="CheckedListControl.xaml.cs" company="GoalBook"> 
//    Copyright © 2009 Mark Brownsword. All rights reserved.
//    This source code and supporting files are licensed under The Code Project  
//    Open License (CPOL) as detailed at http://www.codeproject.com/info/cpol10.aspx. 
// </copyright>
namespace GoalBook.Controls.CheckedList
{
    #region Using Statements
    using System;
    using System.ComponentModel;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Controls.Primitives;
    using GoalBook.Infrastructure;
    #endregion

    /// <summary>
    /// Interaction logic for CheckedListControl.xaml
    /// </summary>
    public partial class CheckedListControl : UserControl
    {
        #region Constants and Enums
        #endregion

        #region Instance and Shared Fields
        /// <summary>
        /// Declaration for CheckedItemsChangedEvent.
        /// </summary>
        public static readonly RoutedEvent CheckedItemsChangedEvent = EventManager.RegisterRoutedEvent(
            "CheckedItemsChanged", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(CheckedListControl));

        /// <summary>
        /// Declaration for StatusChangedEvent.
        /// </summary>
        public static readonly RoutedEvent StatusChangedEvent = EventManager.RegisterRoutedEvent(
            "StatusChanged", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(CheckedListControl)); 
        #endregion

        #region Constructors
        /// <summary>
        /// Initializes a new instance of the CheckedListControl class.
        /// </summary>
        public CheckedListControl()
        {
            InitializeComponent();

            this.filterListBox.ItemContainerGenerator.StatusChanged += this.ItemContainerGenerator_StatusChanged;

            this.CheckedItems = new KeyValueItemList();
            this.RaiseCheckedItemsChangedEvent = false;
        }
        #endregion

        #region Delegates and Events
        /// <summary>
        /// CheckedItemsChanged Event.
        /// </summary>
        public event RoutedEventHandler CheckedItemsChanged
        {
            add { AddHandler(CheckedItemsChangedEvent, value); }
            remove { RemoveHandler(CheckedItemsChangedEvent, value); }
        }

        /// <summary>
        /// CheckedItemsChanged Event.
        /// </summary>
        public event RoutedEventHandler StatusChanged
        {
            add { AddHandler(StatusChangedEvent, value); }
            remove { RemoveHandler(StatusChangedEvent, value); }
        }
        #endregion

        #region Properties
        /// <summary>
        /// Gets or sets the CheckedItems.
        /// </summary>
        public KeyValueItemList CheckedItems { get; set; }
        
        /// <summary>
        /// Gets or sets a value indicating whether RaiseCheckedItemsChangedEvent.
        /// </summary>
        public bool RaiseCheckedItemsChangedEvent { get; set; }        
        #endregion

        #region Public and internal Methods
        #endregion

        #region Base Class Overrides
        #endregion

        #region Private and Protected Methods
        /// <summary>
        /// Init CheckBoxList.
        /// </summary>        
        private void InitCheckBoxList()
        {
            this.RaiseCheckedItemsChangedEvent = false;

            if (this.CheckedItems.Count == 0)
            {
                this.filterListBox.UnselectAll();
                this.RaiseCheckedItemsChangedEvent = true;
                return;
            }

            ListBoxItem listBoxItem = null;
            KeyValueItem content = null;

            foreach (object item in this.filterListBox.Items)
            {
                // Get the listBoxItem belonging to the item. 
                listBoxItem = (ListBoxItem)this.filterListBox.ItemContainerGenerator.ContainerFromItem(item);
                content = (KeyValueItem)listBoxItem.Content;

                foreach (KeyValueItem keyValueItem in this.CheckedItems)
                {
                    if (keyValueItem.Key == content.Key)
                    {
                        listBoxItem.IsSelected = true;
                        break;
                    }
                }
            }

            this.RaiseCheckedItemsChangedEvent = true;
        }

        /// <summary>
        /// On Checked Items Changed.
        /// </summary>
        private void OnCheckedItemsChanged()
        {
            RoutedEventArgs args = new RoutedEventArgs(CheckedItemsChangedEvent);
            RaiseEvent(args);
        }

        /// <summary>
        /// On Status Changed.
        /// </summary>
        private void OnStatusChanged()
        {
            RoutedEventArgs args = new RoutedEventArgs(StatusChangedEvent);
            RaiseEvent(args);
        }
        
        /// <summary>
        /// Set Checked Items.
        /// </summary>        
        private void SetCheckedItems()
        {            
            if (this.filterListBox.ItemContainerGenerator.Status != GeneratorStatus.ContainersGenerated)
            {
                return;
            }

            this.CheckedItems.Clear();

            ListBoxItem listBoxItem = null;
            KeyValueItem content = null;

            foreach (object item in filterListBox.SelectedItems)
            {
                // Get the listBoxItem and its content.
                if ((listBoxItem = (ListBoxItem)this.filterListBox.ItemContainerGenerator.ContainerFromItem(item)) != null)
                {
                    if ((content = (KeyValueItem)listBoxItem.Content) != null)
                    {                        
                        // Add to CheckedItems.
                        this.CheckedItems.Add(new KeyValueItem(content.Key, content.Value, content.Order));
                    }
                }
            }
        }        
        #endregion

        #region Event Handlers
        /// <summary>
        /// Handle Control_Loaded event.
        /// </summary>
        /// <param name="sender">sender parameter</param>
        /// <param name="e">RoutedEventArgs parameter</param>        
        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            if (DesignerProperties.GetIsInDesignMode(this))
            {
                return;
            }
                        
            this.RaiseCheckedItemsChangedEvent = true;
        }
        
        /// <summary>
        /// Handle FilterListBox_SelectionChanged event.
        /// </summary>
        /// <param name="sender">sender parameter</param>
        /// <param name="e">SelectionChangedEventArgs parameter</param>
        private void FilterListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (this.RaiseCheckedItemsChangedEvent)
            {
                this.SetCheckedItems();
                this.OnCheckedItemsChanged();
            }
        }

        /// <summary>
        /// Handle ItemContainerGenerator_StatusChanged event.
        /// </summary>
        /// <param name="sender">sender parameter</param>
        /// <param name="e">EventArgs parameter</param>
        private void ItemContainerGenerator_StatusChanged(object sender, EventArgs e)
        {
            // After modifying the bound list it is necessary to wait for ItemContainerGenerator status 
            // to change to 'ContainersGenerated' before attempting to locate any new items.
            if (this.filterListBox.ItemContainerGenerator.Status != GeneratorStatus.ContainersGenerated)
            {
                return;
            }
            
            this.OnStatusChanged();
            this.InitCheckBoxList();
            this.SetCheckedItems();
            this.OnCheckedItemsChanged();            
        }
        #endregion        
    }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Mark Brownsword
Software Developer (Senior)
Australia Australia
I've been working as a software developer since 2000 and hold a Bachelor of Business degree from The Open Polytechnic of New Zealand. Computers are for people and I aim to build applications for people that they would want to use.

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Web03 | 2.8.140827.1 | Last Updated 25 Sep 2009
Article Copyright 2009 by Mark Brownsword
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