Class snippets

ItemsChangeObservableCollection`1.cs

using System;
using System.Collections;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;

namespace Mon
{
    /// <summary>
    /// This class adds the ability to refresh the list when any property of
    /// the objects changes in the list which implements the INotifyPropertyChanged.
    /// </summary>
    /// <typeparam name="T">The type of elements in the collection.</typeparam>
    public class ItemsChangeObservableCollection<T> : ObservableCollection<T>
        where T : INotifyPropertyChanged
    {
        /// <inheritdoc/>
        protected override void ClearItems()
        {
            UnregisterPropertyChanged(this);
            base.ClearItems();
        }

        /// <inheritdoc/>
        protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
        {
            switch (e.Action)
            {
                case NotifyCollectionChangedAction.Add:
                    RegisterPropertyChanged(e.NewItems);
                    break;

                case NotifyCollectionChangedAction.Remove:
                    UnregisterPropertyChanged(e.OldItems);
                    break;

                case NotifyCollectionChangedAction.Replace:
                    UnregisterPropertyChanged(e.OldItems);
                    RegisterPropertyChanged(e.NewItems);
                    break;
            }

            base.OnCollectionChanged(e);
        }


        /// <summary>
        /// Raises <see cref="OnCollectionChanged"/> when an item property change.
        /// </summary>
        /// <param name="sender">The object where the event handler is attached.</param>
        /// <param name="e">The event data.</param>
        private void Item_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            base.OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
        }

        /// <summary>
        /// Register <see cref="Item_PropertyChanged"/> on each item in the list.
        /// </summary>
        /// <param name="items">The list of items.</param>
        private void RegisterPropertyChanged(IList items)
        {
            foreach (INotifyPropertyChanged item in items)
            {
                if (item != null)
                {
                    item.PropertyChanged += Item_PropertyChanged;
                }
            }
        }

        /// <summary>
        /// Unegister <see cref="Item_PropertyChanged"/> on each item in the list.
        /// </summary>
        /// <param name="items">The list of items.</param>
        private void UnregisterPropertyChanged(IList items)
        {
            foreach (INotifyPropertyChanged item in items)
            {
                if (item != null)
                {
                    item.PropertyChanged -= Item_PropertyChanged;
                }
            }
        }
    }
}

XmlRemoveAllNamespaces.cs

using System;
using System.Linq;
using System.Xml.Linq;

namespace ConsoleApp11
{
    internal class Program
    {
        //Implemented based on interface, not part of algorithm
        public static string RemoveAllNamespaces(string xmlDocument)
        {
            XElement xmlDocumentWithoutNs = RemoveAllNamespaces(XElement.Parse(xmlDocument));

            return xmlDocumentWithoutNs.ToString();
            static XElement RemoveAllNamespaces(XElement e)
            {
                return new XElement(e.Name.LocalName,
                  (from n in e.Nodes()
                   select ((n is XElement) ? RemoveAllNamespaces(n as XElement) : n)),
                      (e.HasAttributes) ?
                        (from a in e.Attributes()
                         where (!a.IsNamespaceDeclaration && a.Name != "Name" && a.Value != "0")
                         select new XAttribute(a.Name.LocalName, a.Value)) : null);
            }
        }

        private static void Main(string[] args)
        {
            Console.WriteLine(RemoveAllNamespaces("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<!--This file is compatible with Silverlight-->\r\n<Canvas xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" Name=\"svg3741\" Width=\"600\" Height=\"600\">\r\n  <Canvas.RenderTransform>\r\n    <TranslateTransform X=\"0\" Y=\"0\"/>\r\n  </Canvas.RenderTransform>\r\n  <Canvas.Resources/>\r\n  <!--Unknown tag: metadata-->\r\n  <!--Unknown tag: sodipodi:namedview-->\r\n  <Ellipse xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\" Canvas.Left=\"0\" Canvas.Top=\"0\" Width=\"600\" Height=\"600\" Name=\"circle3731\" Fill=\"#FFAAE0FA\"/>\r\n  <Canvas Name=\"g3739\">\r\n    <Canvas.RenderTransform>\r\n      <TranslateTransform X=\"-239.15\" Y=\"186.79\"/>\r\n    </Canvas.RenderTransform>\r\n    <Path xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\" Name=\"path3733\" Fill=\"#FFCBC2BF\" Data=\"m751.2-99c54.3 54.3 87.9 129.3 87.9 212.2 0 165.7-134.3 300-300 300-82.8 0-157.8-33.6-212.1-87.9\"/>\r\n    <Path xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\" Name=\"path3735\" Fill=\"#FF061922\" Data=\"m485.8 102.2c-16.1 16.4-36 24.6-59.7 24.6-26.5 0-47.6-9.1-63.1-27.2-14.7-17.3-22.1-39.4-22.1-66.2 0-28.8 12.5-61.7 37.6-98.6 20.5-30.3 44.5-56.8 72.2-79.6-4 18.5-6 31.6-6 39.4 0 17.9 5.6 35.3 16.9 52.3 13.8 20.2 24.4 35.2 31.6 45 11.2 17 16.9 33.6 16.9 49.7 0 24-8.1 44.1-24.2 60.6m-0.4-92.3c-4.3-9.7-9.4-16.1-15.1-19.3 0.9 1.7 1.3 4.2 1.3 7.4 0 6.1-1.7 14.7-5.2 25.9l-5.6 17.3c0 10.1 5.1 15.1 15.1 15.1 10.7 0 16-7.1 16-21.2 0-7.2-2.2-15.6-6.5-25.3\"/>\r\n    <Path xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\" Name=\"path3737\" Fill=\"#FF130C0E\" Data=\"m776.9 209.2c0 16.2-5.9 27.3-17.7 33.2-3.4 1.7-14.2 4.1-32.4 7-11.8 2-17.7 6.5-17.7 13.6l0 29.8c0 1.3 0.4 5.1 1.1 11.4l1.1 11.8c0 3.7-0.9 9.7-2.6 18.1-4.7 1-10.1 2.1-16.2 3.3-2-7.4-2.9-12.4-2.9-15.1 0-1.2 0.3-3.1 0.9-5.5 0.6-2.4 0.9-4.3 0.9-5.5 0-1.7-1.5-6.5-4.6-14.4l-5.7 0c-0.8 1.2-1 2.8-0.8 4.8 1 4.2 1.4 7.7 1.1 10.7-4.2 2.9-9.9 6.9-17.3 11.8-1.7-0.5-2.3-0.7-1.8-0.7l0-26.1c-0.5-1.2-1.7-1.7-3.7-1.5l-4.4 0-4.4 34.6c-3.4 0.2-7.6 0.2-12.5 0-1.7-8.1-4.8-20.1-9.2-36.1l-3 0c-2.7 8.6-4.2 13.3-4.4 14 0 1 0.3 2.9 0.9 5.7 0.6 2.8 0.9 4.7 0.9 5.7 0 0.7-0.3 2.6-0.7 5.5l-1.1 8.9c-0.5 0.5-1.1 0.7-1.8 0.7-7.4 0-12.3-1.8-14.7-5.5-2.5-3.7-3.5-8.8-3-15.5l3-44.2c0-0.7 0.2-1.7 0.7-3 0.5-1.2 0.7-2.1 0.7-2.6 0-2-2.1-5.9-6.3-11.8-0.7-0.2-4.5-1.1-11.4-2.6-4.2-1-12.4-2.7-24.7-5.1-16.9-3.2-25.4-16.8-25.4-40.9 0-35.9 14.7-65.7 44.2-89.5 1.2 6.6 3.3 15.5 6.3 26.5 2.2 0.5 7 1.6 14.4 3.3 1.5 0.5 9 3.2 22.5 8.1-6.9-4.2-15.8-10.9-26.9-20.2-4.2-4.9-6.3-13.1-6.3-24.7 0-2.7 4.7-5.9 14-9.6 8.3-3.4 14.6-5.4 18.8-5.9 13.3-1.7 23.4-2.6 30.6-2.6 30.7 0 55.5 7.9 74.4 23.6-6.1 7.1-16.7 14.7-31.7 22.8 5.9 0.2 14.5-2.1 25.8-7 11.3-4.9 16.1-7.4 14.4-7.4 2 0 5.9 3.9 11.8 11.8 4.4 5.9 8 11.2 10.7 15.8 7.9 14 13.1 29.1 15.8 45.3 0 5.7 0.1 9.7 0.4 12.2l0 2.9zm-141.1 6.6c0-10.6-4.6-20.6-13.8-30-9.2-9.5-19.1-14.2-29.7-14.2-9.3 0-17.5 4-24.7 11.9-7.1 7.9-10.7 16.7-10.7 26.3 0 8.4 4.1 13.9 12.2 16.3 5.2 1.5 12.4 2.4 21.7 2.6l20.3 0c16.5 0.2 24.7-4.1 24.7-12.9m40.2 45.7 0-11.4c-1.7-3.2-3.4-6.5-5.1-10-1.5-4.9-4.2-11.8-8.1-20.6l-4.1 43.1c0 3.5-0.7 5.2-2.2 5.2-1 0-1.7-0.2-2.2-0.7-1.7-26-2.6-37.3-2.6-33.9l0-12.9c-0.5-0.8-1.1-1.1-1.8-1.1-8.3 8.6-12.5 22.5-12.5 41.6 0 10.6 1 17.1 2.9 19.5 2-0.5 4.2-1.4 6.6-2.6 1-0.5 3.8-0.7 8.5-0.7 4.7 0 10.3 1.5 16.9 4.4 2.5 0 3.7-6.6 3.7-19.9m83.3-51.3c0-9.9-3.7-18.7-11-26.5-7.4-7.8-15.8-11.7-25.4-11.7-10.3 0-20 4.7-28.9 14.2-9 9.5-13.5 19.3-13.5 29.7 0 8.6 4.2 12.9 12.5 12.9l42.4 0c16-0.2 24-6.4 24-18.5\"/>\r\n  </Canvas>\r\n</Canvas>\r\n"));
        }
    }
}