TagPrefixCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Configuration / TagPrefixCollection.cs / 3 / TagPrefixCollection.cs
                        

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

namespace System.Web.Configuration { 
    using System; 
    using System.Xml;
    using System.Configuration; 
    using System.Collections.Specialized;
    using System.Collections;
    using System.IO;
    using System.Text; 
    using System.Web.Util;
    using System.Web.UI; 
    using System.Web.Compilation; 
    using System.Threading;
    using System.Web.Configuration; 
    using System.Security.Permissions;

    [ConfigurationCollection(typeof(TagPrefixInfo), AddItemName = "add",
     CollectionType = ConfigurationElementCollectionType.BasicMap)] 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public sealed class TagPrefixCollection : ConfigurationElementCollection { 
        private static ConfigurationPropertyCollection _properties; 

 
        static TagPrefixCollection() {
            // Property initialization
            _properties = new ConfigurationPropertyCollection();
        } 
        public TagPrefixCollection()
            : base(StringComparer.OrdinalIgnoreCase) { 
        } 

        protected override ConfigurationPropertyCollection Properties { 
            get {
                return _properties;
            }
        } 

        public TagPrefixInfo this[int index] { 
            get { 
                return (TagPrefixInfo)BaseGet(index);
            } 
            set {
                if (BaseGet(index) != null) {
                    BaseRemoveAt(index);
                } 
                BaseAdd(index, value);
            } 
        } 

        public override ConfigurationElementCollectionType CollectionType { 
            get {
                return ConfigurationElementCollectionType.BasicMap;
            }
        } 

        protected override bool ThrowOnDuplicate { 
            get { 
                return true;
            } 
        }

        public void Add(TagPrefixInfo tagPrefixInformation) {
            BaseAdd(tagPrefixInformation); 
        }
 
        public void Remove(TagPrefixInfo tagPrefixInformation) { 
            BaseRemove(GetElementKey(tagPrefixInformation));
        } 

        public void Clear() {
            BaseClear();
        } 

        protected override ConfigurationElement CreateNewElement() { 
            return new TagPrefixInfo(); 
        }
 
        protected override string ElementName {
            get {
                return "add";
            } 
        }
 
        protected override Object GetElementKey(ConfigurationElement element) { 
            TagPrefixInfo info = (TagPrefixInfo)element;
 
            if (String.IsNullOrEmpty(info.TagName)) {
                return info.TagPrefix + ":" + info.Namespace + ":" +
                      (String.IsNullOrEmpty(info.Assembly) ? string.Empty : info.Assembly);
            } 
            else {
                return info.TagPrefix + ":" + info.TagName; 
            } 
        }
    } 
}

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