private static void LoadProviders()
        {
            // Avoid claiming lock if providers are already loaded
            if (_provider == null)
            {
                lock (_lock)
                {
                    // Do this again to make sure _provider is still null
                    if (_provider == null)
                    {
                        // Get a reference to the <imageService> section
                        BlogServiceSection section = (BlogServiceSection)
                                                     WebConfigurationManager.GetSection
                                                         ("system.web/BlogService");

                        // Load registered providers and point _provider
                        // to the default provider
                        _providers = new BlogProviderCollection();
                        ProvidersHelper.InstantiateProviders
                            (section.Providers, _providers,
                            typeof(BlogProvider));
                        _provider = _providers[section.DefaultProvider];

                        if (_provider == null)
                        {
                            throw new ProviderException
                                      ("Unable to load default ImageProvider");
                        }
                    }
                }
            }
        }
        //Tag
        private static void LoadProviders()
        {
            // Avoid claiming lock if providers are already loaded
            if (_provider == null)
            {
                lock (_lock)
                {
                    // Do this again to make sure _provider is still null
                    if (_provider == null)
                    {
                        // Get a reference to the <imageService> section
                        BlogServiceSection section = (BlogServiceSection)
                            WebConfigurationManager.GetSection
                            ("system.web/BlogService");

                        // Load registered providers and point _provider
                        // to the default provider
                        _providers = new BlogProviderCollection();
                        ProvidersHelper.InstantiateProviders
                            (section.Providers, _providers,
                            typeof(BlogProvider));
                        _provider = _providers[section.DefaultProvider];

                        if (_provider == null)
                            throw new ProviderException
                                ("Unable to load default ImageProvider");
                    }
                }
            }
        }