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519 lines
15 KiB
C#
519 lines
15 KiB
C#
//
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// System.Web.UI.WebControls.SiteMapPath.cs
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//
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// Authors:
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// Lluis Sanchez Gual (lluis@novell.com)
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//
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// (C) 2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
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//
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#if NET_2_0
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Web.UI.HtmlControls;
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namespace System.Web.UI.WebControls
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{
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[Designer ("System.Web.UI.Design.WebControls.SiteMapPathDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
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public class SiteMapPath: CompositeControl
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{
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SiteMapProvider provider;
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Style currentNodeStyle;
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Style nodeStyle;
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Style pathSeparatorStyle;
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Style rootNodeStyle;
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ITemplate currentNodeTemplate;
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ITemplate nodeTemplate;
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ITemplate pathSeparatorTemplate;
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ITemplate rootNodeTemplate;
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static readonly object ItemCreatedEvent = new object();
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static readonly object ItemDataBoundEvent = new object();
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public event SiteMapNodeItemEventHandler ItemCreated {
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add { Events.AddHandler (ItemCreatedEvent, value); }
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remove { Events.RemoveHandler (ItemCreatedEvent, value); }
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}
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public event SiteMapNodeItemEventHandler ItemDataBound {
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add { Events.AddHandler (ItemDataBoundEvent, value); }
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remove { Events.RemoveHandler (ItemDataBoundEvent, value); }
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}
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protected virtual void OnItemCreated (SiteMapNodeItemEventArgs e)
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{
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if (Events != null) {
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SiteMapNodeItemEventHandler eh = (SiteMapNodeItemEventHandler) Events [ItemCreatedEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnItemDataBound (SiteMapNodeItemEventArgs e)
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{
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if (Events != null) {
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SiteMapNodeItemEventHandler eh = (SiteMapNodeItemEventHandler) Events [ItemDataBoundEvent];
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if (eh != null) eh (this, e);
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}
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}
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[DefaultValueAttribute (null)]
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[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
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[NotifyParentPropertyAttribute (true)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public Style CurrentNodeStyle {
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get {
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if (currentNodeStyle == null) {
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currentNodeStyle = new Style ();
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if (IsTrackingViewState)
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((IStateManager)currentNodeStyle).TrackViewState ();
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}
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return currentNodeStyle;
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}
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}
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[DefaultValue (null)]
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[TemplateContainer (typeof(SiteMapNodeItem), BindingDirection.OneWay)]
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[PersistenceMode (PersistenceMode.InnerProperty)]
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[Browsable (false)]
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public virtual ITemplate CurrentNodeTemplate {
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get { return currentNodeTemplate; }
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set { currentNodeTemplate = value; UpdateControls (); }
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}
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[DefaultValueAttribute (null)]
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[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
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[NotifyParentPropertyAttribute (true)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public Style NodeStyle {
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get {
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if (nodeStyle == null) {
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nodeStyle = new Style ();
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if (IsTrackingViewState)
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((IStateManager)nodeStyle).TrackViewState ();
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}
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return nodeStyle;
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}
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}
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[DefaultValue (null)]
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[TemplateContainer (typeof(SiteMapNodeItem), BindingDirection.OneWay)]
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[PersistenceMode (PersistenceMode.InnerProperty)]
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[Browsable (false)]
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public virtual ITemplate NodeTemplate {
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get { return nodeTemplate; }
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set { nodeTemplate = value; UpdateControls (); }
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}
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[DefaultValueAttribute (-1)]
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[ThemeableAttribute (false)]
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public virtual int ParentLevelsDisplayed {
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get { return ViewState.GetInt ("ParentLevelsDisplayed", -1); }
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set {
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if (value < -1) throw new ArgumentOutOfRangeException ("value");
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ViewState ["ParentLevelsDisplayed"] = value;
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UpdateControls ();
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}
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}
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[DefaultValueAttribute (PathDirection.RootToCurrent)]
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public virtual PathDirection PathDirection {
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get { return (PathDirection)ViewState.GetInt ("PathDirection", (int)PathDirection.RootToCurrent); }
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set {
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if (value != PathDirection.RootToCurrent && value != PathDirection.CurrentToRoot)
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throw new ArgumentOutOfRangeException ("value");
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ViewState ["PathDirection"] = value;
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UpdateControls ();
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}
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}
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[DefaultValueAttribute (" > ")]
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[LocalizableAttribute (true)]
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public virtual string PathSeparator {
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get { return ViewState.GetString ("PathSeparator", " > "); }
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set {
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ViewState ["PathSeparator"] = value;
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UpdateControls ();
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}
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}
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[DefaultValueAttribute (null)]
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[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
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[NotifyParentPropertyAttribute (true)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public Style PathSeparatorStyle {
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get {
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if (pathSeparatorStyle == null) {
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pathSeparatorStyle = new Style ();
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if (IsTrackingViewState)
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((IStateManager)pathSeparatorStyle).TrackViewState ();
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}
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return pathSeparatorStyle;
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}
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}
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[DefaultValue (null)]
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[TemplateContainer (typeof(SiteMapNodeItem), BindingDirection.OneWay)]
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[PersistenceMode (PersistenceMode.InnerProperty)]
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[Browsable (false)]
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public virtual ITemplate PathSeparatorTemplate {
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get { return pathSeparatorTemplate; }
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set { pathSeparatorTemplate = value; UpdateControls (); }
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}
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[BrowsableAttribute (false)]
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[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
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public SiteMapProvider Provider {
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get {
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if (provider == null) {
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if (this.SiteMapProvider.Length == 0) {
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provider = SiteMap.Provider;
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if (provider == null)
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throw new HttpException ("There is no default provider configured for the site.");
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} else {
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provider = SiteMap.Providers [this.SiteMapProvider];
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if (provider == null)
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throw new HttpException ("SiteMap provider '" + this.SiteMapProvider + "' not found.");
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}
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}
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return provider;
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}
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set {
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provider = value;
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UpdateControls ();
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}
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}
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[DefaultValueAttribute (false)]
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public virtual bool RenderCurrentNodeAsLink {
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get { return ViewState.GetBool ("RenderCurrentNodeAsLink", false); }
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set {
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ViewState ["RenderCurrentNodeAsLink"] = value;
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UpdateControls ();
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}
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}
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[DefaultValueAttribute (null)]
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[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
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[NotifyParentPropertyAttribute (true)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public Style RootNodeStyle {
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get {
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if (rootNodeStyle == null) {
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rootNodeStyle = new Style ();
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if (IsTrackingViewState)
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((IStateManager)rootNodeStyle).TrackViewState ();
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}
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return rootNodeStyle;
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}
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}
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[DefaultValue (null)]
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[TemplateContainer (typeof(SiteMapNodeItem), BindingDirection.OneWay)]
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[PersistenceMode (PersistenceMode.InnerProperty)]
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[Browsable (false)]
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public virtual ITemplate RootNodeTemplate {
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get { return rootNodeTemplate; }
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set { rootNodeTemplate = value; UpdateControls (); }
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}
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[DefaultValueAttribute (true)]
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[ThemeableAttribute (false)]
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public virtual bool ShowToolTips {
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get { return ViewState.GetBool ("ShowToolTips", true); }
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set {
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ViewState ["ShowToolTips"] = value;
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UpdateControls ();
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}
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}
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[DefaultValueAttribute ("")]
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[ThemeableAttribute (false)]
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public virtual string SiteMapProvider {
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get { return ViewState.GetString ("SiteMapProvider", ""); }
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set {
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ViewState ["SiteMapProvider"] = value;
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UpdateControls ();
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}
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}
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[Localizable (true)]
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public virtual string SkipLinkText
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{
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get { return ViewState.GetString ("SkipLinkText", "Skip Navigation Links"); }
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set { ViewState["SkipLinkText"] = value; }
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}
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void UpdateControls ()
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{
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ChildControlsCreated = false;
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}
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public override void DataBind ()
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{
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base.DataBind ();
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/* the child controls get bound in
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* base.DataBind */
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foreach (Control c in Controls) {
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if (c is SiteMapNodeItem) {
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SiteMapNodeItem it = (SiteMapNodeItem)c;
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OnItemDataBound (new SiteMapNodeItemEventArgs (it));
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}
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}
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}
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protected internal override void CreateChildControls ()
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{
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Controls.Clear ();
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CreateControlHierarchy ();
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DataBind ();
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}
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protected virtual void CreateControlHierarchy ()
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{
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ArrayList nodes = new ArrayList ();
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SiteMapNode node = Provider.CurrentNode;
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if (node == null) return;
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int levels = ParentLevelsDisplayed != -1 ? ParentLevelsDisplayed + 1 : int.MaxValue;
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while (node != null && levels > 0) {
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if (nodes.Count > 0) {
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SiteMapNodeItem sep = new SiteMapNodeItem (nodes.Count, SiteMapNodeItemType.PathSeparator);
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InitializeItem (sep);
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SiteMapNodeItemEventArgs sargs = new SiteMapNodeItemEventArgs (sep);
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OnItemCreated (sargs);
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nodes.Add (sep);
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}
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SiteMapNodeItemType nt;
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if (nodes.Count == 0)
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nt = SiteMapNodeItemType.Current;
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else if (node.ParentNode == null)
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nt = SiteMapNodeItemType.Root;
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else
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nt = SiteMapNodeItemType.Parent;
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SiteMapNodeItem it = new SiteMapNodeItem (nodes.Count, nt);
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it.SiteMapNode = node;
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InitializeItem (it);
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SiteMapNodeItemEventArgs args = new SiteMapNodeItemEventArgs (it);
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OnItemCreated (args);
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nodes.Add (it);
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node = node.ParentNode;
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levels--;
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}
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if (PathDirection == PathDirection.RootToCurrent) {
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for (int n=nodes.Count - 1; n>=0; n--)
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Controls.Add ((Control)nodes[n]);
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} else {
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for (int n=0; n<nodes.Count; n++)
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Controls.Add ((Control)nodes[n]);
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}
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}
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protected virtual void InitializeItem (SiteMapNodeItem item)
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{
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switch (item.ItemType) {
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case SiteMapNodeItemType.Root:
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if (RootNodeTemplate != null) {
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item.ApplyStyle (NodeStyle);
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item.ApplyStyle (RootNodeStyle);
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RootNodeTemplate.InstantiateIn (item);
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}
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else if (NodeTemplate != null) {
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item.ApplyStyle (NodeStyle);
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item.ApplyStyle (RootNodeStyle);
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NodeTemplate.InstantiateIn (item);
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}
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else {
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WebControl c = CreateHyperLink (item);
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c.ApplyStyle (NodeStyle);
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c.ApplyStyle (RootNodeStyle);
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item.Controls.Add (c);
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}
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break;
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case SiteMapNodeItemType.Current:
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if (CurrentNodeTemplate != null) {
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item.ApplyStyle (NodeStyle);
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item.ApplyStyle (CurrentNodeStyle);
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CurrentNodeTemplate.InstantiateIn (item);
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}
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else if (NodeTemplate != null) {
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item.ApplyStyle (NodeStyle);
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item.ApplyStyle (CurrentNodeStyle);
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NodeTemplate.InstantiateIn (item);
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} else if (RenderCurrentNodeAsLink) {
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HyperLink c = CreateHyperLink (item);
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c.ApplyStyle (NodeStyle);
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c.ApplyStyle (CurrentNodeStyle);
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item.Controls.Add (c);
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} else {
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Literal c = CreateLiteral (item);
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item.ApplyStyle (NodeStyle);
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item.ApplyStyle (CurrentNodeStyle);
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item.Controls.Add (c);
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}
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break;
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case SiteMapNodeItemType.Parent:
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if (NodeTemplate != null) {
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item.ApplyStyle (NodeStyle);
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NodeTemplate.InstantiateIn (item);
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}
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else {
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WebControl c = CreateHyperLink (item);
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c.ApplyStyle (NodeStyle);
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item.Controls.Add (c);
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}
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break;
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case SiteMapNodeItemType.PathSeparator:
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if (PathSeparatorTemplate != null) {
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item.ApplyStyle (PathSeparatorStyle);
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PathSeparatorTemplate.InstantiateIn (item);
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} else {
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Literal h = new Literal ();
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h.Text = HttpUtility.HtmlEncode (PathSeparator);
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item.ApplyStyle (PathSeparatorStyle);
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item.Controls.Add (h);
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}
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break;
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}
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}
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HyperLink CreateHyperLink (SiteMapNodeItem item)
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{
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HyperLink h = new HyperLink ();
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h.Text = item.SiteMapNode.Title;
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h.NavigateUrl = item.SiteMapNode.Url;
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if (ShowToolTips)
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h.ToolTip = item.SiteMapNode.Description;
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return h;
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}
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Literal CreateLiteral (SiteMapNodeItem item)
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{
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Literal h = new Literal ();
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h.Text = item.SiteMapNode.Title;
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return h;
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}
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protected override void LoadViewState (object savedState)
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{
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if (savedState == null) {
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base.LoadViewState (null);
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return;
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}
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object[] states = (object[]) savedState;
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base.LoadViewState (states [0]);
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if (states[1] != null) ((IStateManager)CurrentNodeStyle).LoadViewState (states[1]);
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if (states[2] != null) ((IStateManager)NodeStyle).LoadViewState (states[2]);
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if (states[3] != null) ((IStateManager)PathSeparatorStyle).LoadViewState (states[3]);
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if (states[4] != null) ((IStateManager)RootNodeStyle).LoadViewState (states[4]);
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}
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[MonoTODO ("why override?")]
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protected override void OnDataBinding (EventArgs e)
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{
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base.OnDataBinding (e);
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}
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[MonoTODO ("why override?")]
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protected internal override void Render (HtmlTextWriter w)
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{
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base.Render (w);
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}
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protected internal override void RenderContents (HtmlTextWriter w)
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{
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string skip_id = ClientID + "_SkipLink";
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string altText = SkipLinkText;
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bool needAnchor = !String.IsNullOrEmpty (altText);
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if (needAnchor) {
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// Anchor start
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w.AddAttribute (HtmlTextWriterAttribute.Href, "#" + skip_id);
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w.RenderBeginTag (HtmlTextWriterTag.A);
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// Image
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w.AddAttribute (HtmlTextWriterAttribute.Alt, altText);
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w.AddAttribute (HtmlTextWriterAttribute.Height, "0");
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w.AddAttribute (HtmlTextWriterAttribute.Width, "0");
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w.AddAttribute (HtmlTextWriterAttribute.Src, Page.ClientScript.GetWebResourceUrl (typeof (SiteMapPath), "transparent.gif"));
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w.AddStyleAttribute (HtmlTextWriterStyle.BorderWidth, "0px");
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w.RenderBeginTag (HtmlTextWriterTag.Img);
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w.RenderEndTag ();
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w.RenderEndTag ();
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}
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base.RenderContents (w);
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if (needAnchor) {
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w.AddAttribute(HtmlTextWriterAttribute.Id, skip_id);
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w.RenderBeginTag(HtmlTextWriterTag.A);
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w.RenderEndTag();
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}
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}
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protected override object SaveViewState ()
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{
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object[] state = new object [5];
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state [0] = base.SaveViewState ();
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if (currentNodeStyle != null) state [1] = ((IStateManager)currentNodeStyle).SaveViewState ();
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if (nodeStyle != null) state [2] = ((IStateManager)nodeStyle).SaveViewState ();
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if (pathSeparatorStyle != null) state [3] = ((IStateManager)pathSeparatorStyle).SaveViewState ();
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if (rootNodeStyle != null) state [4] = ((IStateManager)rootNodeStyle).SaveViewState ();
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for (int n=0; n<state.Length; n++)
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if (state [n] != null) return state;
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return null;
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}
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protected override void TrackViewState ()
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{
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base.TrackViewState();
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if (currentNodeStyle != null) ((IStateManager)currentNodeStyle).TrackViewState();
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if (nodeStyle != null) ((IStateManager)nodeStyle).TrackViewState();
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if (pathSeparatorStyle != null) ((IStateManager)pathSeparatorStyle).TrackViewState();
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if (rootNodeStyle != null) ((IStateManager)rootNodeStyle).TrackViewState();
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}
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}
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}
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#endif
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