TagMapCollection.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 / xsp / System / Web / Configuration / TagMapCollection.cs / 1305376 / TagMapCollection.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(TagMapInfo))]
    public sealed class TagMapCollection : ConfigurationElementCollection { 
        private static ConfigurationPropertyCollection _properties;
 
        private Hashtable _tagMappings; 

        static TagMapCollection() { 
            // Property initialization
            _properties = new ConfigurationPropertyCollection();
        }
 
        public TagMapCollection() {
        } 
 
        protected override ConfigurationPropertyCollection Properties {
            get { 
                return _properties;
            }
        }
 
        public TagMapInfo this[int index] {
            get { 
                return (TagMapInfo)BaseGet(index); 
            }
            set { 
                if (BaseGet(index) != null) {
                    BaseRemoveAt(index);
                }
                BaseAdd(index, value); 
            }
        } 
 
        public void Add(TagMapInfo tagMapInformation) {
            BaseAdd(tagMapInformation); 
        }

        public void Remove(TagMapInfo tagMapInformation) {
            BaseRemove(GetElementKey(tagMapInformation)); 
        }
 
        public void Clear() { 
            BaseClear();
        } 

        protected override ConfigurationElement CreateNewElement() {
            return new TagMapInfo();
        } 

        protected override Object GetElementKey(ConfigurationElement element) { 
            return ((TagMapInfo)element).TagType; 
        }
 
        internal Hashtable TagTypeMappingInternal {
            get {
                if (_tagMappings == null) {
                    lock (this) { 
                        if (_tagMappings == null) {
                            Hashtable tagMappings = new Hashtable(StringComparer.OrdinalIgnoreCase); 
 
                            foreach (TagMapInfo tmi in this) {
                                Type tagType = ConfigUtil.GetType(tmi.TagType, "tagType", tmi); 
                                Type mappedTagType = ConfigUtil.GetType(tmi.MappedTagType, "mappedTagType", tmi);

                                if (tagType.IsAssignableFrom(mappedTagType) == false) {
                                    throw new ConfigurationErrorsException( 
                                        SR.GetString(
                                            SR.Mapped_type_must_inherit, 
                                            tmi.MappedTagType, 
                                            tmi.TagType),
                                        tmi.ElementInformation.Properties["mappedTagType"].Source, 
                                        tmi.ElementInformation.Properties["mappedTagType"].LineNumber);
                                }

                                tagMappings[tagType] = mappedTagType; 
                            }
                            _tagMappings = tagMappings; 
                        } 
                    }
                } 
                return _tagMappings;
            }
        }
    } 
}

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

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