ConnectionStringSettingsCollection.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 / Configuration / System / Configuration / ConnectionStringSettingsCollection.cs / 1305376 / ConnectionStringSettingsCollection.cs
                        

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

namespace System.Configuration { 
    using System; 
    using System.Xml;
    using System.Configuration; 
    using System.Collections.Specialized;
    using System.Collections;
    using System.IO;
    using System.Text; 

    // class ConnectionStringsSection 
 
    [ConfigurationCollection(typeof(ConnectionStringSettings))]
    public sealed class ConnectionStringSettingsCollection : ConfigurationElementCollection { 
        private static ConfigurationPropertyCollection _properties;

        static ConnectionStringSettingsCollection() {
            // Property initialization 
            _properties = new ConfigurationPropertyCollection();
        } 
 
        protected internal override ConfigurationPropertyCollection Properties {
            get { 
                return _properties;
            }
        }
 
        public ConnectionStringSettingsCollection()
            : base(StringComparer.OrdinalIgnoreCase) { 
        } 
        public ConnectionStringSettings this[int index] {
            get { 
                return (ConnectionStringSettings)BaseGet(index);
            }
            set {
                if (BaseGet(index) != null) { 
                    BaseRemoveAt(index);
                } 
                BaseAdd(index, value); 
            }
        } 

        new public ConnectionStringSettings this[string name] {
            get {
                return (ConnectionStringSettings)BaseGet(name); 
            }
        } 
 
        public int IndexOf(ConnectionStringSettings settings) {
            return BaseIndexOf(settings); 
        }

        // the connection string behavior is strange in that is acts kind of like a
        // basic map and partially like a add remove clear collection 
        // Overriding these methods allows for the specific behaviors to be
        // patterened 
        protected override void BaseAdd(int index, ConfigurationElement element) { 
            if (index == -1) {
                BaseAdd(element, false); 
            }
            else {
                base.BaseAdd(index, element);
            } 
        }
 
        public void Add(ConnectionStringSettings settings) { 
            BaseAdd(settings);
        } 

        public void Remove(ConnectionStringSettings settings) {
            if (BaseIndexOf(settings) >= 0) {
                BaseRemove(settings.Key); 
            }
        } 
 
        public void RemoveAt(int index) {
            BaseRemoveAt(index); 
        }

        public void Remove(string name) {
            BaseRemove(name); 
        }
 
        protected override ConfigurationElement CreateNewElement() { 
            return new ConnectionStringSettings();
        } 

        protected override Object GetElementKey(ConfigurationElement element) {
            return ((ConnectionStringSettings)element).Key;
        } 

        public void Clear() { 
            BaseClear(); 
        }
    } 
}

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

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK