SiteMapSection.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 / xsp / System / Web / Configuration / SiteMapSection.cs / 2 / SiteMapSection.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.Security.Permissions;
 
    /*          
         
            
                
             
        
*/ 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    public sealed class SiteMapSection : ConfigurationSection {
        private static ConfigurationPropertyCollection _properties; 

        private static readonly ConfigurationProperty _propDefaultProvider =
            new ConfigurationProperty("defaultProvider",
                                        typeof(string), 
                                        "AspNetXmlSiteMapProvider",
                                        null, 
                                        StdValidatorsAndConverters.NonEmptyStringValidator, 
                                        ConfigurationPropertyOptions.None);
 
        private static readonly ConfigurationProperty _propEnabled =
            new ConfigurationProperty("enabled",
                                        typeof(bool),
                                        true, 
                                        ConfigurationPropertyOptions.None);
 
        private static readonly ConfigurationProperty _propProviders = 
            new ConfigurationProperty("providers",
                                        typeof(ProviderSettingsCollection), 
                                        null,
                                        ConfigurationPropertyOptions.None);

        private SiteMapProviderCollection _siteMapProviders; 

        static SiteMapSection() { 
            // Property initialization 
            _properties = new ConfigurationPropertyCollection();
            _properties.Add(_propDefaultProvider); 
            _properties.Add(_propEnabled);
            _properties.Add(_propProviders);
        }
 
        public SiteMapSection() {
        } 
 
        protected override ConfigurationPropertyCollection Properties {
            get { 
                return _properties;
            }
        }
 
        [ConfigurationProperty("defaultProvider", DefaultValue = "AspNetXmlSiteMapProvider")]
        [StringValidator(MinLength = 1)] 
        public string DefaultProvider { 
            get {
                return (string)base[_propDefaultProvider]; 
            }
            set {
                base[_propDefaultProvider] = value;
            } 
        }
 
        [ConfigurationProperty("enabled", DefaultValue = true)] 
        public bool Enabled {
            get { 
                return (bool)base[_propEnabled];
            }
            set {
                base[_propEnabled] = value; 
            }
        } 
 
        [ConfigurationProperty("providers")]
        public ProviderSettingsCollection Providers { 
            get {
                return (ProviderSettingsCollection)base[_propProviders];
            }
        } 

        internal SiteMapProviderCollection ProvidersInternal { 
            get { 
                if (_siteMapProviders == null) {
                    lock (this) { 
                        if (_siteMapProviders == null) {
                            SiteMapProviderCollection siteMapProviders = new SiteMapProviderCollection();
                            ProvidersHelper.InstantiateProviders(Providers, siteMapProviders, typeof(SiteMapProvider));
 
                            _siteMapProviders = siteMapProviders;
                        } 
                    } 
                }
 
                return _siteMapProviders;
            }
        }
 
        internal void ValidateDefaultProvider() {
            if (!String.IsNullOrEmpty(DefaultProvider)) // make sure the specified provider has a provider entry in the collection 
            { 
                if (Providers[DefaultProvider] == null) {
                    throw new ConfigurationErrorsException( 
                        SR.GetString(SR.Config_provider_must_exist, DefaultProvider),
                        ElementInformation.Properties[_propDefaultProvider.Name].Source,
                        ElementInformation.Properties[_propDefaultProvider.Name].LineNumber);
                } 
            }
        } 
    } // class SiteMapSection 
}

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