Click here to Skip to main content
Click here to Skip to main content
Add your own
alternative version

Auto-filter for Microsoft WPF DataGrid

, 29 Jan 2009
Allows auto filtering functionality for DataGrid columns.
WPFGridFilter.zip
WPFGridFilter
PowerCollections
PowerCollections.csproj.user
Properties
Stepi.Collections
bin
Filters
Properties
Stepi.UIFilters
bin
Initializers
Properties
Settings.settings
Themes
Test.GridSorting
bin
Debug
Test.GridFilter.vshost.exe
Properties
Settings.settings
//******************************
// Written by Peter Golde
// Copyright (c) 2004-2005, Wintellect
//
// Use and restribution of this code is subject to the license agreement 
// contained in the file "License.txt" accompanying this file.
//******************************

using System;
using System.Collections;
using System.Collections.Generic;

namespace Wintellect.PowerCollections
{
    /// <summary>
    /// ListBase is an abstract class that can be used as a base class for a read-write collection that needs 
    /// to implement the generic IList&lt;T&gt; and non-generic IList collections. The derived class needs
    /// to override the following methods: Count, Clear, Insert, RemoveAt, and the indexer. The implementation
    /// of all the other methods in IList&lt;T&gt; and IList are handled by ListBase.
    /// </summary>
    /// <typeparam name="T"></typeparam>
    [Serializable]
    public abstract class ListBase<T> : CollectionBase<T>, IList<T>, IList
    {
        /// <summary>
        /// Creates a new ListBase.
        /// </summary>
        protected ListBase()
        {
        }

        /// <summary>
        /// The property must be overridden by the derived class to return the number of 
        /// items in the list.
        /// </summary>
        /// <value>The number of items in the list.</value>
        public abstract override int Count { get;} 

        /// <summary>
        /// This method must be overridden by the derived class to empty the list
        /// of all items.
        /// </summary>
        public abstract override void Clear();

        /// <summary>
        /// The indexer must be overridden by the derived class to get and set
        /// values of the list at a particular index.
        /// </summary>
        /// <param name="index">The index in the list to get or set an item at. The
        /// first item in the list has index 0, and the last has index Count-1.</param>
        /// <returns>The item at the given index.</returns>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is
        /// less than zero or greater than or equal to Count.</exception>
        public abstract T this[int index]
        {
            get;
            set;
        }

        /// <summary>
        /// This method must be overridden by the derived class to insert a new
        /// item at the given index. 
        /// </summary>
        /// <param name="index">The index in the list to insert the item at. After the
        /// insertion, the inserted item is located at this index. The
        /// first item in the list has index 0.</param>
        /// <param name="item">The item to insert at the given index.</param>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is
        /// less than zero or greater than Count.</exception>
        public abstract void Insert(int index, T item);

        /// <summary>
        /// This method must be overridden by the derived class to remove the
        /// item at the given index. 
        /// </summary>
        /// <param name="index">The index in the list to remove the item at. The
        /// first item in the list has index 0.</param>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is
        /// less than zero or greater than or equal to Count.</exception>
        public abstract void RemoveAt(int index);

        /// <summary>
        /// Enumerates all of the items in the list, in order. The item at index 0
        /// is enumerated first, then the item at index 1, and so on.
        /// </summary>
        /// <remarks>The enumerator does not check for changes made
        /// to the structure of the list. Thus, changes to the list during
        /// enumeration may cause incorrect enumeration or out of range
        /// exceptions. Consider overriding this method and adding checks
        /// for structural changes.</remarks>
        /// <returns>An IEnumerator&lt;T&gt; that enumerates all the
        /// items in the list.</returns>
        public override IEnumerator<T> GetEnumerator()
        {
            int count = Count;
            for (int i = 0; i < count; ++i) {
                yield return this[i];
            }
        }

        /// <summary>
        /// Determines if the list contains any item that compares equal to <paramref name="item"/>.
        /// The implementation simply checks whether IndexOf(item) returns a non-negative value.
        /// </summary>
        /// <remarks>Equality in the list is determined by the default sense of
        /// equality for T. If T implements IComparable&lt;T&gt;, the
        /// Equals method of that interface is used to determine equality. Otherwise, 
        /// Object.Equals is used to determine equality.</remarks>
        /// <param name="item">The item to search for.</param>
        /// <returns>True if the list contains an item that compares equal to <paramref name="item"/>.</returns>
        public override bool Contains(T item)
        {
            return (IndexOf(item) >= 0);
        }

        /// <summary>
        /// Adds an item to the end of the list. This method is equivalent to calling: 
        /// <code>Insert(Count, item)</code>
        /// </summary>
        /// <param name="item">The item to add to the list.</param>
        public override void Add(T item)
        {
            Insert(Count, item);
        }

        /// <summary>
        /// Searches the list for the first item that compares equal to <paramref name="item"/>.
        /// If one is found, it is removed. Otherwise, the list is unchanged.
        /// </summary>
        /// <remarks>Equality in the list is determined by the default sense of
        /// equality for T. If T implements IComparable&lt;T&gt;, the
        /// Equals method of that interface is used to determine equality. Otherwise, 
        /// Object.Equals is used to determine equality.</remarks>
        /// <param name="item">The item to remove from the list.</param>
        /// <returns>True if an item was found and removed that compared equal to
        /// <paramref name="item"/>. False if no such item was in the list.</returns>
        public override bool Remove(T item)
        {
            int index = IndexOf(item);
            if (index >= 0) {
                RemoveAt(index);
                return true;
            }
            else {
                return false;
            }
        }

        /// <summary>
        /// Copies all the items in the list, in order, to <paramref name="array"/>,
        /// starting at index 0.
        /// </summary>
        /// <param name="array">The array to copy to. This array must have a size
        /// that is greater than or equal to Count.</param>
        public virtual void CopyTo(T[] array)
        {
            this.CopyTo(array, 0);
        }

        /// <summary>
        /// Copies all the items in the list, in order, to <paramref name="array"/>,
        /// starting at <paramref name="arrayIndex"/>.
        /// </summary>
        /// <param name="array">The array to copy to. This array must have a size
        /// that is greater than or equal to Count + arrayIndex.</param>
        /// <param name="arrayIndex">The starting index in <paramref name="array"/>
        /// to copy to.</param>
        public override void CopyTo(T[] array, int arrayIndex)
        {
            base.CopyTo(array, arrayIndex);
        }

        /// <summary>
        /// Copies a range of elements from the list to <paramref name="array"/>,
        /// starting at <paramref name="arrayIndex"/>.
        /// </summary>
        /// <param name="index">The starting index in the source list of the range to copy.</param>
        /// <param name="array">The array to copy to. This array must have a size
        /// that is greater than or equal to Count + arrayIndex.</param>
        /// <param name="arrayIndex">The starting index in <paramref name="array"/>
        /// to copy to.</param>
        /// <param name="count">The number of items to copy.</param>
        public virtual void CopyTo(int index, T[] array, int arrayIndex, int count)
        {
            Range(index, count).CopyTo(array, arrayIndex);
        }

        /// <summary>
        /// Provides a read-only view of this list. The returned IList&lt;T&gt; provides
        /// a view of the list that prevents modifications to the list. Use the method to provide
        /// access to the list without allowing changes. Since the returned object is just a view,
        /// changes to the list will be reflected in the view.
        /// </summary>
        /// <returns>An IList&lt;T&gt; that provides read-only access to the list.</returns>
        public virtual new IList<T> AsReadOnly()
        {
            return Algorithms.ReadOnly<T>(this);
        }

        /// <summary>
        /// Finds the first item in the list that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, than
        /// the default value for T (null or all-zero) is returned.
        /// </summary>
        /// <remarks>If the default value for T (null or all-zero) matches the condition defined by <paramref name="predicate"/>,
        /// and the list might contain the default value, then it is impossible to distinguish the different between finding
        /// the default value and not finding any item. To distinguish these cases, use <see cref="TryFind"/>.</remarks>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <returns>The first item that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, the default value for T is returned.</returns>
        /// <seealso cref="TryFind"/>
        public virtual T Find(Predicate<T> predicate)
        {
            return Algorithms.FindFirstWhere(this, predicate);
        }

        /// <summary>
        /// Finds the first item in the list that satisfies the condition
        /// defined by <paramref name="predicate"/>. 
        /// </summary>
        /// <param name="predicate">A delegate that defines the condition to check for.</param>
        /// <param name="foundItem">If true is returned, this parameter receives the first item in the list
        /// that satifies the condition defined by <paramref name="predicate"/>.</param>
        /// <returns>True if an item that  satisfies the condition <paramref name="predicate"/> was found. False 
        /// if no item in the list satisfies that condition.</returns>
        public virtual bool TryFind(Predicate<T> predicate, out T foundItem)
        {
            return Algorithms.TryFindFirstWhere<T>(this, predicate, out foundItem);
        }

        /// <summary>
        /// Finds the last item in the list that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, than
        /// the default value for T (null or all-zero) is returned.
        /// </summary>
        /// <remarks>If the default value for T (null or all-zero) matches the condition defined by <paramref name="predicate"/>,
        /// and the list might contain the default value, then it is impossible to distinguish the different between finding
        /// the default value and not finding any item. To distinguish these cases, use <see cref="TryFindLast"/>.</remarks>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <returns>The last item that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, the default value for T is returned.</returns>
        /// <seealso cref="TryFindLast"/>
        public virtual T FindLast(Predicate<T> predicate)
        {
            return Algorithms.FindLastWhere(this, predicate);
        }

        /// <summary>
        /// Finds the last item in the list that satisfies the condition
        /// defined by <paramref name="predicate"/>. 
        /// </summary>
        /// <param name="predicate">A delegate that defines the condition to check for.</param>
        /// <param name="foundItem">If true is returned, this parameter receives the last item in the list
        /// that satifies the condition defined by <paramref name="predicate"/>.</param>
        /// <returns>True if an item that  satisfies the condition <paramref name="predicate"/> was found. False 
        /// if no item in the list satisfies that condition.</returns>
        public virtual bool TryFindLast(Predicate<T> predicate, out T foundItem)
        {
            return Algorithms.TryFindLastWhere<T>(this, predicate, out foundItem);
        }

        /// <summary>
        /// Finds the index of the first item in the list that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, -1 is returned.
        /// </summary>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <returns>The index of the first item that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, -1 is returned.</returns>
        public virtual int FindIndex(Predicate<T> predicate)
        {
            return Algorithms.FindFirstIndexWhere<T>(this, predicate);
        }

        /// <summary>
        /// Finds the index of the first item, in the range of items extending from <paramref name="index"/> to the end, that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, -1 is returned.
        /// </summary>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <param name="index">The starting index of the range to check.</param>
        /// <returns>The index of the first item in the given range that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, -1 is returned.</returns>
        public virtual int FindIndex(int index, Predicate<T> predicate)
        {
            int foundIndex = Algorithms.FindFirstIndexWhere<T>(Range(index, Count - index), predicate);
            if (foundIndex < 0)
                return -1;
            else
                return foundIndex + index;
        }

        /// <summary>
        /// Finds the index of the first item, in the range of <paramref name="count"/> items starting from <paramref name="index"/>, that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, -1 is returned.
        /// </summary>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <param name="index">The starting index of the range to check.</param>
        /// <param name="count">The number of items in range to check.</param>
        /// <returns>The index of the first item in the given range that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, -1 is returned.</returns>
        public virtual int FindIndex(int index, int count, Predicate<T> predicate)
        {
            int foundIndex = Algorithms.FindFirstIndexWhere<T>(Range(index, count), predicate);
            if (foundIndex < 0)
                return -1;
            else
                return foundIndex + index;
        }

        /// <summary>
        /// Finds the index of the last item in the list that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, -1 is returned.
        /// </summary>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <returns>The index of the last item that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, -1 is returned.</returns>
        public virtual int FindLastIndex(Predicate<T> predicate)
        {
            return Algorithms.FindLastIndexWhere<T>(this, predicate);
        }

        /// <summary>
        /// Finds the index of the last item, in the range of items extending from the beginning
        /// of the list to <paramref name="index"/>, that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, -1 is returned.
        /// </summary>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <param name="index">The ending index of the range to check.</param>
        /// <returns>The index of the last item in the given range that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, -1 is returned.</returns>
        public virtual int FindLastIndex(int index, Predicate<T> predicate)
        {
            return Algorithms.FindLastIndexWhere<T>(Range(0, index + 1), predicate);
        }

        /// <summary>
        /// Finds the index of the last item, in the range of <paramref name="count"/> items ending at <paramref name="index"/>, that satisfies the condition
        /// defined by <paramref name="predicate"/>. If no item matches the condition, -1 is returned.
        /// </summary>
        /// <param name="predicate">A delegate that defined the condition to check for.</param>
        /// <param name="index">The ending index of the range to check.</param>
        /// <param name="count">The number of items in range to check.</param>
        /// <returns>The index of the last item in the given range that satisfies the condition <paramref name="predicate"/>. If no item satisfies that
        /// condition, -1 is returned.</returns>
        public virtual int FindLastIndex(int index, int count, Predicate<T> predicate)
        {
            int foundIndex = Algorithms.FindLastIndexWhere<T>(Range(index - count + 1, count), predicate);

            if (foundIndex >= 0)
                return foundIndex + index - count + 1;
            else
                return -1;
        }

        /// <summary>
        /// Finds the index of the first item in the list that is equal to <paramref name="item"/>. 
        /// </summary>
        /// <remarks>The default implementation of equality for type T is used in the search. This is the
        /// equality defined by IComparable&lt;T&gt; or object.Equals.</remarks>
        /// <param name="item">The item to search fror.</param>
        /// <returns>The index of the first item in the list that that is equal to <paramref name="item"/>.  If no item is equal
        /// to <paramref name="item"/>, -1 is returned.</returns>
        public virtual int IndexOf(T item)
        {
            return Algorithms.FirstIndexOf<T>(this, item, EqualityComparer<T>.Default);
        }

        /// <summary>
        /// Finds the index of the first item, in the range of items extending from <paramref name="index"/> to the end,  
        /// that is equal to <paramref name="item"/>. 
        /// </summary>
        /// <remarks>The default implementation of equality for type T is used in the search. This is the
        /// equality defined by IComparable&lt;T&gt; or object.Equals.</remarks>
        /// <param name="item">The item to search fror.</param>
        /// <param name="index">The starting index of the range to check.</param>
        /// <returns>The index of the first item in the given range that that is equal to <paramref name="item"/>.  If no item is equal
        /// to <paramref name="item"/>, -1 is returned.</returns>
        public virtual int IndexOf(T item, int index)
        {
            int foundIndex = Algorithms.FirstIndexOf<T>(Range(index, Count - index), item, EqualityComparer<T>.Default);

            if (foundIndex >= 0)
                return foundIndex + index;
            else
                return -1;
        }

        /// <summary>
        /// Finds the index of the first item, in the range of <paramref name="count"/> items starting from <paramref name="index"/>,  
        /// that is equal to <paramref name="item"/>. 
        /// </summary>
        /// <remarks>The default implementation of equality for type T is used in the search. This is the
        /// equality defined by IComparable&lt;T&gt; or object.Equals.</remarks>
        /// <param name="item">The item to search fror.</param>
        /// <param name="index">The starting index of the range to check.</param>
        /// <param name="count">The number of items in range to check.</param>
        /// <returns>The index of the first item in the given range that that is equal to <paramref name="item"/>.  If no item is equal
        /// to <paramref name="item"/>, -1 is returned.</returns>
        public virtual int IndexOf(T item, int index, int count)
        {
            int foundIndex = Algorithms.FirstIndexOf<T>(Range(index, count), item, EqualityComparer<T>.Default);

            if (foundIndex >= 0)
                return foundIndex + index;
            else
                return -1;
        }

        /// <summary>
        /// Finds the index of the last item in the list that is equal to <paramref name="item"/>. 
        /// </summary>
        /// <remarks>The default implementation of equality for type T is used in the search. This is the
        /// equality defined by IComparable&lt;T&gt; or object.Equals.</remarks>
        /// <param name="item">The item to search fror.</param>
        /// <returns>The index of the last item in the list that that is equal to <paramref name="item"/>.  If no item is equal
        /// to <paramref name="item"/>, -1 is returned.</returns>
        public virtual int LastIndexOf(T item)
        {
            return Algorithms.LastIndexOf<T>(this, item, EqualityComparer<T>.Default);
        }

        /// <summary>
        /// Finds the index of the last item, in the range of items extending from the beginning
        /// of the list to <paramref name="index"/>, that is equal to <paramref name="item"/>. 
        /// </summary>
        /// <remarks>The default implementation of equality for type T is used in the search. This is the
        /// equality defined by IComparable&lt;T&gt; or object.Equals.</remarks>
        /// <param name="item">The item to search fror.</param>
        /// <param name="index">The ending index of the range to check.</param>
        /// <returns>The index of the last item in the given range that that is equal to <paramref name="item"/>.  If no item is equal
        /// to <paramref name="item"/>, -1 is returned.</returns>
        public virtual int LastIndexOf(T item, int index)
        {
            int foundIndex = Algorithms.LastIndexOf<T>(Range(0, index + 1), item, EqualityComparer<T>.Default);

            return foundIndex;
        }

        /// <summary>
        /// Finds the index of the last item, in the range of <paramref name="count"/> items ending at <paramref name="index"/>, 
        /// that is equal to <paramref name="item"/>. 
        /// </summary>
        /// <remarks>The default implementation of equality for type T is used in the search. This is the
        /// equality defined by IComparable&lt;T&gt; or object.Equals.</remarks>
        /// <param name="item">The item to search for.</param>
        /// <param name="index">The ending index of the range to check.</param>
        /// <param name="count">The number of items in range to check.</param>
        /// <returns>The index of the last item in the given range that that is equal to <paramref name="item"/>.  If no item is equal
        /// to <paramref name="item"/>, -1 is returned.</returns>
        public virtual int LastIndexOf(T item, int index, int count)
        {
            int foundIndex = Algorithms.LastIndexOf<T>(Range(index - count + 1, count), item, EqualityComparer<T>.Default);

            if (foundIndex >= 0)
                return foundIndex + index - count + 1;
            else
                return -1;
        }

        /// <summary>
        /// Returns a view onto a sub-range of this list. Items are not copied; the
        /// returned IList&lt;T&gt; is simply a different view onto the same underlying items. Changes to this list
        /// are reflected in the view, and vice versa. Insertions and deletions in the view change the size of the 
        /// view, but insertions and deletions in the underlying list do not.
        /// </summary>
        /// <remarks>
        /// <para>This method can be used to apply an algorithm to a portion of a list. For example:</para>
        /// <code>Algorithms.ReverseInPlace(deque.Range(3, 6))</code>
        /// will reverse the 6 items beginning at index 3.</remarks>
        /// <param name="start">The starting index of the view.</param>
        /// <param name="count">The number of items in the view.</param>
        /// <returns>A list that is a view onto the given sub-part of this list. </returns>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="start"/> or <paramref name="count"/> is negative.</exception>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="start"/> + <paramref name="count"/> is greater than the
        /// size of the list.</exception>
        public virtual IList<T> Range(int start, int count)
        {
            return Algorithms.Range<T>(this, start, count);
        }

        /// <summary>
        /// Convert the given parameter to T. Throw an ArgumentException
        /// if it isn't.
        /// </summary>
        /// <param name="name">parameter name</param>
        /// <param name="value">parameter value</param>
        private T ConvertToItemType(string name, object value)
        {
            try {
                return (T)value;
            }
            catch (InvalidCastException) {
                throw new ArgumentException(string.Format(Strings.WrongType, value, typeof(T)), name);
            }
        }

        /// <summary>
        /// Adds an item to the end of the list. This method is equivalent to calling: 
        /// <code>Insert(Count, item)</code>
        /// </summary>
        /// <param name="value">The item to add to the list.</param>
        /// <exception cref="ArgumentException"><paramref name="value"/> cannot be converted to T.</exception>
        int IList.Add(object value)
        {
            int count = Count;
            Insert(count, ConvertToItemType("value", value));
            return count;
        }

        /// <summary>
        /// Removes all the items from the list, resulting in an empty list.
        /// </summary>
        void IList.Clear()
        {
            Clear();
        }

        /// <summary>
        /// Determines if the list contains any item that compares equal to <paramref name="value"/>.
        /// </summary>
        /// <remarks>Equality in the list is determined by the default sense of
        /// equality for T. If T implements IComparable&lt;T&gt;, the
        /// Equals method of that interface is used to determine equality. Otherwise, 
        /// Object.Equals is used to determine equality.</remarks>
        /// <param name="value">The item to search for.</param>
        bool IList.Contains(object value)
        {
            if (value is T || value == null)
                return Contains((T)value);
            else
                return false;
        }

        /// <summary>
        /// Find the first occurrence of an item equal to <paramref name="value"/>
        /// in the list, and returns the index of that item.
        /// </summary>
        /// <remarks>Equality in the list is determined by the default sense of
        /// equality for T. If T implements IComparable&lt;T&gt;, the
        /// Equals method of that interface is used to determine equality. Otherwise, 
        /// Object.Equals is used to determine equality.</remarks>
        /// <param name="value">The item to search for.</param>
        /// <returns>The index of <paramref name="value"/>, or -1 if no item in the 
        /// list compares equal to <paramref name="value"/>.</returns>
        int IList.IndexOf(object value)
        {
            if (value is T || value == null)
                return IndexOf((T)value);
            else
                return -1;
        }

        /// <summary>
        /// Insert a new
        /// item at the given index. 
        /// </summary>
        /// <param name="index">The index in the list to insert the item at. After the
        /// insertion, the inserted item is located at this index. The
        /// first item in the list has index 0.</param>
        /// <param name="value">The item to insert at the given index.</param>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is
        /// less than zero or greater than Count.</exception>
        /// <exception cref="ArgumentException"><paramref name="value"/> cannot be converted to T.</exception>
        void IList.Insert(int index, object value)
        {
            Insert(index, ConvertToItemType("value", value));
        }

        /// <summary>
        /// Returns whether the list is a fixed size. This implementation always returns false.
        /// </summary>
        /// <value>Alway false, indicating that the list is not fixed size.</value>
        bool IList.IsFixedSize
        {
            get { return false; }
        }

        /// <summary>
        /// Returns whether the list is read only. This implementation returns the value
        /// from ICollection&lt;T&gt;.IsReadOnly, which is by default, false.
        /// </summary>
        /// <value>By default, false, indicating that the list is not read only.</value>
        bool IList.IsReadOnly
        {
            get { return ((ICollection<T>)this).IsReadOnly; }
        }

        /// <summary>
        /// Searches the list for the first item that compares equal to <paramref name="value"/>.
        /// If one is found, it is removed. Otherwise, the list is unchanged.
        /// </summary>
        /// <remarks>Equality in the list is determined by the default sense of
        /// equality for T. If T implements IComparable&lt;T&gt;, the
        /// Equals method of that interface is used to determine equality. Otherwise, 
        /// Object.Equals is used to determine equality.</remarks>
        /// <param name="value">The item to remove from the list.</param>
        /// <exception cref="ArgumentException"><paramref name="value"/> cannot be converted to T.</exception>
        void IList.Remove(object value)
        {
            if (value is T || value == null)
                Remove((T)value);
        }

        /// <summary>
        /// Removes the
        /// item at the given index. 
        /// </summary>
        /// <param name="index">The index in the list to remove the item at. The
        /// first item in the list has index 0.</param>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is
        /// less than zero or greater than or equal to Count.</exception>
        void IList.RemoveAt(int index)
        {
            RemoveAt(index);
        }

        /// <summary>
        /// Gets or sets the
        /// value at a particular index in the list.
        /// </summary>
        /// <param name="index">The index in the list to get or set an item at. The
        /// first item in the list has index 0, and the last has index Count-1.</param>
        /// <value>The item at the given index.</value>
        /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is
        /// less than zero or greater than or equal to Count.</exception>
        /// <exception cref="ArgumentException"><paramref name="value"/> cannot be converted to T.</exception>
        object IList.this[int index]
        {
            get
            {
                return this[index];
            }

            set
            {
                this[index] = ConvertToItemType("value", value);
            }
        }
    }
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Eclipse Public License 1.0

About the Author

Stefan Bocutiu
Software Developer (Senior) Lab49
United Kingdom United Kingdom
No Biography provided

| Advertise | Privacy | Mobile
Web02 | 2.8.140721.1 | Last Updated 29 Jan 2009
Article Copyright 2009 by Stefan Bocutiu
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid