BaseCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Data / System / Data / BaseCollection.cs / 1 / BaseCollection.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
// [....] 
//----------------------------------------------------------------------------- 

namespace System.Data { 
    using System;
    using System.Collections;
    using System.ComponentModel;
    using System.Globalization; 

    ///  
    ///    Provides the base functionality for creating collections. 
    /// 
#if WINFSInternalOnly 
    internal
#else
    public
#endif 
    class InternalDataCollectionBase : ICollection {
        internal static CollectionChangeEventArgs RefreshEventArgs = new CollectionChangeEventArgs(CollectionChangeAction.Refresh, null); 
 
        //==================================================
        // the ICollection methods 
        //==================================================
        /// 
        ///    Gets the total number of elements in a collection.
        ///  
        [
        Browsable(false) 
        ] 
        public virtual int Count {
            get { 
                return List.Count;
            }
        }
 
        public virtual void CopyTo(Array ar, int index) {
            List.CopyTo(ar, index); 
        } 

        public virtual IEnumerator GetEnumerator() { 
            return List.GetEnumerator();
        }

        [ 
        Browsable(false)
        ] 
        public bool IsReadOnly { 
            get {
                return false; 
            }
        }

        [Browsable(false)] 
        public bool IsSynchronized {
            get { 
                // so the user will know that it has to lock this object 
                return false;
            } 
        }

        // Return value:
        // > 0 (1)  : CaseSensitve equal 
        // < 0 (-1) : Case-Insensitive Equal
        // = 0      : Not Equal 
        internal int NamesEqual(string s1, string s2, bool fCaseSensitive, CultureInfo locale) { 
            if (fCaseSensitive) {
                if (String.Compare(s1, s2, false, locale) == 0) 
                    return 1;
                else
                    return 0;
            } 

            // Case, kana and width -Insensitive compare 
            if (locale.CompareInfo.Compare(s1, s2, 
                CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0) {
                if (String.Compare(s1, s2, false, locale) == 0) 
                    return 1;
                else
                    return -1;
            } 
            return 0;
        } 
 

        [Browsable(false)] 
        public object SyncRoot {
            get {
                return this;
            } 
        }
 
        protected virtual ArrayList List { 
            get {
                return null; 
            }
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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