ListBase.cs source code in C# .NET

                        
Code:
                         / Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / Xml / System / Xml / ListBase.cs / 1 / ListBase.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
using System; 
using System.Xml; 
using System.Xml.Schema;
using System.Collections.Generic; 
using System.Diagnostics;
using System.Text;

namespace System.Xml { 

    /// 
 
    /// Implementation of read-only IList and IList interfaces.  Derived classes can inherit from 
    /// this class and implement only two methods, Count and Item, rather than the entire IList interface.
    /// 
 
    internal abstract class ListBase : IList, System.Collections.IList {
        //-----------------------------------------------
        // Abstract IList methods that must be
        // implemented by derived classes 
        //-----------------------------------------------
        public abstract int Count { get; } 
        public abstract T this[int index] { get; set; } 

 
        //-----------------------------------------------
        // Implemented by base class -- accessible on
        // ListBase
        //----------------------------------------------- 
        public virtual bool Contains(T value) {
            return IndexOf(value) != -1; 
        } 

        public virtual int IndexOf(T value) { 
            for (int i = 0; i < Count; i++)
                if (value.Equals(this[i]))
                    return i;
 
            return -1;
        } 
 
        public virtual void CopyTo(T[] array, int index) {
            for (int i = 0; i < Count; i++) 
                array[index + i] = this[i];
        }

        public virtual IListEnumerator GetEnumerator() { 
            return new IListEnumerator(this);
        } 
 
        public virtual bool IsFixedSize {
            get { return true; } 
        }

        public virtual bool IsReadOnly {
            get { return true; } 
        }
 
        public virtual void Add(T value) { 
            Insert(Count, value);
        } 

        public virtual void Insert(int index, T value) {
            throw new NotSupportedException();
        } 

        public virtual bool Remove(T value) { 
            int index = IndexOf(value); 
            if (index >= 0) {
                RemoveAt(index); 
                return true;
            }
            return false;
        } 

        public virtual void RemoveAt(int index) { 
            throw new NotSupportedException(); 
        }
 
        public virtual void Clear() {
            for (int index = Count - 1; index >= 0; index--)
                RemoveAt(index);
        } 

 
        //----------------------------------------------- 
        // Implemented by base class -- only accessible
        // after casting to IList 
        //-----------------------------------------------
        IEnumerator IEnumerable.GetEnumerator() {
            return new IListEnumerator(this);
        } 

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { 
            return new IListEnumerator(this); 
        }
 
        bool System.Collections.ICollection.IsSynchronized {
            get { return IsReadOnly; }
        }
 
        object System.Collections.ICollection.SyncRoot {
            get { return this; } 
        } 

        void System.Collections.ICollection.CopyTo(Array array, int index) { 
            for (int i = 0; i < Count; i++)
                array.SetValue(this[i], index);
        }
 
        object System.Collections.IList.this[int index] {
            get { return this[index]; } 
            set { 
                if (!IsCompatibleType(value.GetType()))
                    throw new ArgumentException(); 

                this[index] = (T) value;
            }
        } 

        int System.Collections.IList.Add(object value) { 
            if (!IsCompatibleType(value.GetType())) 
                throw new ArgumentException();
 
            Add((T) value);
            return Count - 1;
        }
 
        void System.Collections.IList.Clear() {
            Clear(); 
        } 

        bool System.Collections.IList.Contains(object value) { 
            if (!IsCompatibleType(value.GetType()))
                return false;

            return Contains((T) value); 
        }
 
        int System.Collections.IList.IndexOf(object value) { 
            if (!IsCompatibleType(value.GetType()))
                return -1; 

            return IndexOf((T) value);
        }
 
        void System.Collections.IList.Insert(int index, object value) {
            if (!IsCompatibleType(value.GetType())) 
                throw new ArgumentException(); 

            Insert(index, (T) value); 
        }

        void System.Collections.IList.Remove(object value) {
            if (!IsCompatibleType(value.GetType())) 
                throw new ArgumentException();
 
            Remove((T) value); 
        }
 

        //-----------------------------------------------
        // Helper methods and classes
        //----------------------------------------------- 

        private static bool IsCompatibleType(object value) { 
            if((value == null && !typeof(T).IsValueType) || (value is T)) 
                return true;
 
            return false;
        }
    }
 
    /// 

    /// Implementation of IEnumerator and IEnumerator over an IList. 
    /// 
 
    internal struct IListEnumerator : IEnumerator, System.Collections.IEnumerator {
        private IList sequence; 
        private int index;
        private T current;

        /// 
 
        /// Constructor.
        /// 
 
        public IListEnumerator(IList sequence) { 
            this.sequence = sequence;
            this.index = 0; 
            this.current = default(T);
        }

        /// 
 
        /// No-op.
        /// 
 
        public void Dispose() { 
        }
 
        /// 

        /// Return current item.  Return default value if before first item or after last item in the list.
        /// 
        public T Current { 
            get { return this.current; }
        } 
 
        /// 

        /// Return current item.  Throw exception if before first item or after last item in the list. 
        /// 
        object System.Collections.IEnumerator.Current {
            get {
                if (this.index == 0) 
                    throw new InvalidOperationException(Res.GetString(Res.Sch_EnumNotStarted, string.Empty));
 
                if (this.index > this.sequence.Count) 
                    throw new InvalidOperationException(Res.GetString(Res.Sch_EnumFinished, string.Empty));
 
                return this.current;
            }
        }
 
        /// 

        /// Advance enumerator to next item in list.  Return false if there are no more items. 
        /// 
 
        public bool MoveNext() {
            if (this.index < this.sequence.Count) { 
                this.current = this.sequence[this.index];
                this.index++;
                return true;
            } 

            this.current = default(T); 
            return false; 
        }
 
        /// 

        /// Set the enumerator to its initial position, which is before the first item in the list.
        /// 
        void System.Collections.IEnumerator.Reset() { 
            this.index = 0;
            this.current = default(T); 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
using System; 
using System.Xml; 
using System.Xml.Schema;
using System.Collections.Generic; 
using System.Diagnostics;
using System.Text;

namespace System.Xml { 

    /// 
 
    /// Implementation of read-only IList and IList interfaces.  Derived classes can inherit from 
    /// this class and implement only two methods, Count and Item, rather than the entire IList interface.
    /// 
 
    internal abstract class ListBase : IList, System.Collections.IList {
        //-----------------------------------------------
        // Abstract IList methods that must be
        // implemented by derived classes 
        //-----------------------------------------------
        public abstract int Count { get; } 
        public abstract T this[int index] { get; set; } 

 
        //-----------------------------------------------
        // Implemented by base class -- accessible on
        // ListBase
        //----------------------------------------------- 
        public virtual bool Contains(T value) {
            return IndexOf(value) != -1; 
        } 

        public virtual int IndexOf(T value) { 
            for (int i = 0; i < Count; i++)
                if (value.Equals(this[i]))
                    return i;
 
            return -1;
        } 
 
        public virtual void CopyTo(T[] array, int index) {
            for (int i = 0; i < Count; i++) 
                array[index + i] = this[i];
        }

        public virtual IListEnumerator GetEnumerator() { 
            return new IListEnumerator(this);
        } 
 
        public virtual bool IsFixedSize {
            get { return true; } 
        }

        public virtual bool IsReadOnly {
            get { return true; } 
        }
 
        public virtual void Add(T value) { 
            Insert(Count, value);
        } 

        public virtual void Insert(int index, T value) {
            throw new NotSupportedException();
        } 

        public virtual bool Remove(T value) { 
            int index = IndexOf(value); 
            if (index >= 0) {
                RemoveAt(index); 
                return true;
            }
            return false;
        } 

        public virtual void RemoveAt(int index) { 
            throw new NotSupportedException(); 
        }
 
        public virtual void Clear() {
            for (int index = Count - 1; index >= 0; index--)
                RemoveAt(index);
        } 

 
        //----------------------------------------------- 
        // Implemented by base class -- only accessible
        // after casting to IList 
        //-----------------------------------------------
        IEnumerator IEnumerable.GetEnumerator() {
            return new IListEnumerator(this);
        } 

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { 
            return new IListEnumerator(this); 
        }
 
        bool System.Collections.ICollection.IsSynchronized {
            get { return IsReadOnly; }
        }
 
        object System.Collections.ICollection.SyncRoot {
            get { return this; } 
        } 

        void System.Collections.ICollection.CopyTo(Array array, int index) { 
            for (int i = 0; i < Count; i++)
                array.SetValue(this[i], index);
        }
 
        object System.Collections.IList.this[int index] {
            get { return this[index]; } 
            set { 
                if (!IsCompatibleType(value.GetType()))
                    throw new ArgumentException(); 

                this[index] = (T) value;
            }
        } 

        int System.Collections.IList.Add(object value) { 
            if (!IsCompatibleType(value.GetType())) 
                throw new ArgumentException();
 
            Add((T) value);
            return Count - 1;
        }
 
        void System.Collections.IList.Clear() {
            Clear(); 
        } 

        bool System.Collections.IList.Contains(object value) { 
            if (!IsCompatibleType(value.GetType()))
                return false;

            return Contains((T) value); 
        }
 
        int System.Collections.IList.IndexOf(object value) { 
            if (!IsCompatibleType(value.GetType()))
                return -1; 

            return IndexOf((T) value);
        }
 
        void System.Collections.IList.Insert(int index, object value) {
            if (!IsCompatibleType(value.GetType())) 
                throw new ArgumentException(); 

            Insert(index, (T) value); 
        }

        void System.Collections.IList.Remove(object value) {
            if (!IsCompatibleType(value.GetType())) 
                throw new ArgumentException();
 
            Remove((T) value); 
        }
 

        //-----------------------------------------------
        // Helper methods and classes
        //----------------------------------------------- 

        private static bool IsCompatibleType(object value) { 
            if((value == null && !typeof(T).IsValueType) || (value is T)) 
                return true;
 
            return false;
        }
    }
 
    /// 

    /// Implementation of IEnumerator and IEnumerator over an IList. 
    /// 
 
    internal struct IListEnumerator : IEnumerator, System.Collections.IEnumerator {
        private IList sequence; 
        private int index;
        private T current;

        /// 
 
        /// Constructor.
        /// 
 
        public IListEnumerator(IList sequence) { 
            this.sequence = sequence;
            this.index = 0; 
            this.current = default(T);
        }

        /// 
 
        /// No-op.
        /// 
 
        public void Dispose() { 
        }
 
        /// 

        /// Return current item.  Return default value if before first item or after last item in the list.
        /// 
        public T Current { 
            get { return this.current; }
        } 
 
        /// 

        /// Return current item.  Throw exception if before first item or after last item in the list. 
        /// 
        object System.Collections.IEnumerator.Current {
            get {
                if (this.index == 0) 
                    throw new InvalidOperationException(Res.GetString(Res.Sch_EnumNotStarted, string.Empty));
 
                if (this.index > this.sequence.Count) 
                    throw new InvalidOperationException(Res.GetString(Res.Sch_EnumFinished, string.Empty));
 
                return this.current;
            }
        }
 
        /// 

        /// Advance enumerator to next item in list.  Return false if there are no more items. 
        /// 
 
        public bool MoveNext() {
            if (this.index < this.sequence.Count) { 
                this.current = this.sequence[this.index];
                this.index++;
                return true;
            } 

            this.current = default(T); 
            return false; 
        }
 
        /// 

        /// Set the enumerator to its initial position, which is before the first item in the list.
        /// 
        void System.Collections.IEnumerator.Reset() { 
            this.index = 0;
            this.current = default(T); 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

                        

                        

                        
                        

Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK

• PDBReader.cs
• ConnectionsZoneAutoFormat.cs
• EntityDataSourceWizardForm.cs
• DBSqlParserTable.cs
• TrackingWorkflowEventArgs.cs
• GeometryValueSerializer.cs
• Type.cs
• CodeDelegateInvokeExpression.cs
• ProxyWebPartManager.cs
• DirectoryInfo.cs
• Task.cs
• WindowsFormsHostAutomationPeer.cs
• SqlUserDefinedTypeAttribute.cs
• Formatter.cs
• Duration.cs
• MessageBox.cs
• ReflectionPermission.cs
• KeyInterop.cs
• SoapIncludeAttribute.cs
• PersonalizableTypeEntry.cs
• TypeForwardedToAttribute.cs
• GcSettings.cs
• CancellationTokenRegistration.cs
• NameObjectCollectionBase.cs
• filewebrequest.cs
• AmbientValueAttribute.cs
• UnsafeNativeMethods.cs
• SimpleApplicationHost.cs
• TemplateEditingService.cs
• ExtenderProvidedPropertyAttribute.cs
• HttpCacheParams.cs
• InvokePattern.cs
• HttpHandler.cs
• EventWaitHandle.cs
• SharedStream.cs
• TypeConverters.cs
• ScriptingRoleServiceSection.cs
• ProcessModelSection.cs
• OracleCommand.cs
• datacache.cs
• LinkButton.cs
• ProbeMatches11.cs
• DataRowExtensions.cs
• TaskFileService.cs
• EncodingConverter.cs
• DataGridPageChangedEventArgs.cs
• RuleSetReference.cs
• OleDbReferenceCollection.cs
• ObjectTag.cs
• QueryStringParameter.cs
• BinaryFormatterWriter.cs
• XslVisitor.cs
• WebPartCatalogAddVerb.cs
• XPathDocumentNavigator.cs
• TextRange.cs
• CookieProtection.cs
• SizeChangedInfo.cs
• ObjectIDGenerator.cs
• WebPartConnectionsCancelEventArgs.cs
• ValueSerializer.cs
• LicenseException.cs
• DataSourceView.cs
• login.cs
• UrlPath.cs
• CodeTypeConstructor.cs
• Filter.cs
• ControlType.cs
• RectValueSerializer.cs
• JobDuplex.cs
• RegexInterpreter.cs
• Point4D.cs
• XmlQueryTypeFactory.cs
• ReversePositionQuery.cs
• SessionState.cs
• Win32Interop.cs
• ComboBoxItem.cs
• SQLBinary.cs
• DataGridViewElement.cs
• TreeWalker.cs
• RegisteredHiddenField.cs
• RootBrowserWindow.cs
• XmlWriterSettings.cs
• IssuanceLicense.cs
• ToolStripPanelSelectionBehavior.cs
• DataServiceException.cs
• ExceptionTranslationTable.cs
• WindowsSysHeader.cs
• ToolStripAdornerWindowService.cs
• __ConsoleStream.cs
• ActivityFunc.cs
• Soap.cs
• UpdatePanel.cs
• UIPermission.cs
• RemotingHelper.cs
• ScalarType.cs
• RawMouseInputReport.cs
• WpfSharedXamlSchemaContext.cs
• StringStorage.cs
• CommandID.cs
• SymbolPair.cs