BaseCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / BaseCollection.cs / 1305376 / 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. 
    /// 
    public 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.
                        

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