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754 lines
25 KiB
C#
754 lines
25 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="SiteMapPath.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.UI.WebControls {
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using System;
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using System.ComponentModel;
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using System.Web;
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using System.Web.UI;
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using System.Web.Util;
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[
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Designer("System.Web.UI.Design.WebControls.SiteMapPathDesigner, " + AssemblyRef.SystemDesign)
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]
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public class SiteMapPath : CompositeControl {
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private const string _defaultSeparator = " > ";
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private static readonly object _eventItemCreated = new object();
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private static readonly object _eventItemDataBound = new object();
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private SiteMapProvider _provider = null;
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private Style _currentNodeStyle;
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private Style _rootNodeStyle;
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private Style _nodeStyle;
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private Style _pathSeparatorStyle;
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private Style _mergedCurrentNodeStyle;
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private Style _mergedRootNodeStyle;
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private ITemplate _currentNodeTemplate;
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private ITemplate _rootNodeTemplate;
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private ITemplate _nodeTemplate;
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private ITemplate _pathSeparatorTemplate;
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public SiteMapPath() {
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}
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[
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DefaultValue(null),
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DesignerSerializationVisibility(DesignerSerializationVisibility.Content),
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NotifyParentProperty(true),
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PersistenceMode(PersistenceMode.InnerProperty),
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WebCategory("Styles"),
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WebSysDescription(SR.SiteMapPath_CurrentNodeStyle)
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]
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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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}
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return _currentNodeStyle;
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}
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}
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/// <devdoc>
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/// <para>Gets or sets the <see cref='System.Web.UI.ITemplate' qualify='true'/> that defines how the current node is rendered. </para>
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/// </devdoc>
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[
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Browsable(false),
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DefaultValue(null),
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PersistenceMode(PersistenceMode.InnerProperty),
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TemplateContainer(typeof(SiteMapNodeItem)),
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WebSysDescription(SR.SiteMapPath_CurrentNodeTemplate)
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]
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public virtual ITemplate CurrentNodeTemplate {
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get {
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return _currentNodeTemplate;
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}
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set {
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_currentNodeTemplate = value;
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}
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}
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[
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DefaultValue(null),
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DesignerSerializationVisibility(DesignerSerializationVisibility.Content),
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NotifyParentProperty(true),
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PersistenceMode(PersistenceMode.InnerProperty),
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WebCategory("Styles"),
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WebSysDescription(SR.SiteMapPath_NodeStyle)
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]
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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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}
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return _nodeStyle;
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}
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}
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/// <devdoc>
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/// <para>Gets or sets the <see cref='System.Web.UI.ITemplate' qualify='true'/> that defines how the parent node is rendered. </para>
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/// </devdoc>
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[
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Browsable(false),
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DefaultValue(null),
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PersistenceMode(PersistenceMode.InnerProperty),
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TemplateContainer(typeof(SiteMapNodeItem)),
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WebSysDescription(SR.SiteMapPath_NodeTemplate)
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]
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public virtual ITemplate NodeTemplate {
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get {
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return _nodeTemplate;
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}
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set {
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_nodeTemplate = value;
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}
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}
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/// <devdoc>
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/// <para>Indicates the number of parent nodes to display.</para>
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/// </devdoc>
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[
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DefaultValue(-1),
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Themeable(false),
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WebCategory("Behavior"),
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WebSysDescription(SR.SiteMapPath_ParentLevelsDisplayed)
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]
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public virtual int ParentLevelsDisplayed {
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get {
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object o = ViewState["ParentLevelsDisplayed"];
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if (o == null) {
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return -1;
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}
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return (int)o;
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}
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set {
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if (value < -1) {
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throw new ArgumentOutOfRangeException("value");
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}
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ViewState["ParentLevelsDisplayed"] = value;
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}
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}
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[
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DefaultValue(PathDirection.RootToCurrent),
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WebCategory("Appearance"),
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WebSysDescription(SR.SiteMapPath_PathDirection)
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]
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public virtual PathDirection PathDirection {
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get {
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object o = ViewState["PathDirection"];
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if (o == null) {
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return PathDirection.RootToCurrent;
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}
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return (PathDirection)o;
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}
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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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}
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ViewState["PathDirection"] = value;
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}
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}
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[
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DefaultValue(_defaultSeparator),
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Localizable(true),
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WebCategory("Appearance"),
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WebSysDescription(SR.SiteMapPath_PathSeparator)
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]
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public virtual string PathSeparator {
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get {
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string s = (string)ViewState["PathSeparator"];
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if (s == null) {
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return _defaultSeparator;
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}
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return s;
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}
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set {
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ViewState["PathSeparator"] = value;
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}
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}
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[
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DefaultValue(null),
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DesignerSerializationVisibility(DesignerSerializationVisibility.Content),
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NotifyParentProperty(true),
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PersistenceMode(PersistenceMode.InnerProperty),
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WebCategory("Styles"),
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WebSysDescription(SR.SiteMapPath_PathSeparatorStyle)
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]
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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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}
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return _pathSeparatorStyle;
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}
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}
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/// <devdoc>
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/// <para>Gets or sets the <see cref='System.Web.UI.ITemplate' qualify='true'/> that defines how the path Separator is rendered. </para>
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/// </devdoc>
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[
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Browsable(false),
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DefaultValue(null),
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PersistenceMode(PersistenceMode.InnerProperty),
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TemplateContainer(typeof(SiteMapNodeItem)),
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WebSysDescription(SR.SiteMapPath_PathSeparatorTemplate)
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]
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public virtual ITemplate PathSeparatorTemplate {
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get {
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return _pathSeparatorTemplate;
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}
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set {
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_pathSeparatorTemplate = value;
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}
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}
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[
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Browsable(false),
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DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
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WebSysDescription(SR.SiteMapPath_Provider)
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]
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public SiteMapProvider Provider {
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get {
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// Designer must specify a provider, as code below access runtime config
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if (_provider != null || DesignMode)
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return _provider;
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// If not specified, use the default provider.
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if (String.IsNullOrEmpty(SiteMapProvider)) {
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_provider = SiteMap.Provider;
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if (_provider == null) {
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throw new HttpException(SR.GetString(SR.SiteMapDataSource_DefaultProviderNotFound));
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}
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}
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else {
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_provider = SiteMap.Providers[SiteMapProvider];
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if (_provider == null) {
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throw new HttpException(SR.GetString(SR.SiteMapDataSource_ProviderNotFound, SiteMapProvider));
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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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}
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}
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[
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DefaultValue(false),
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WebCategory("Appearance"),
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WebSysDescription(SR.SiteMapPath_RenderCurrentNodeAsLink)
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]
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public virtual bool RenderCurrentNodeAsLink {
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get {
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object o = ViewState["RenderCurrentNodeAsLink"];
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if (o == null) {
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return false;
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}
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return (bool)o;
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}
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set {
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ViewState["RenderCurrentNodeAsLink"] = value;
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}
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}
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[
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DefaultValue(null),
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DesignerSerializationVisibility(DesignerSerializationVisibility.Content),
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NotifyParentProperty(true),
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PersistenceMode(PersistenceMode.InnerProperty),
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WebCategory("Styles"),
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WebSysDescription(SR.SiteMapPath_RootNodeStyle)
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]
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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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}
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return _rootNodeStyle;
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}
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}
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/// <devdoc>
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/// <para>Gets or sets the <see cref='System.Web.UI.ITemplate' qualify='true'/> that defines how the root node is rendered. </para>
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/// </devdoc>
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[
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Browsable(false),
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DefaultValue(null),
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PersistenceMode(PersistenceMode.InnerProperty),
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TemplateContainer(typeof(SiteMapNodeItem)),
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WebSysDescription(SR.SiteMapPath_RootNodeTemplate)
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]
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public virtual ITemplate RootNodeTemplate {
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get {
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return _rootNodeTemplate;
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}
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set {
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_rootNodeTemplate = value;
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}
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}
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[
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Localizable(true),
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WebCategory("Accessibility"),
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WebSysDefaultValue(SR.SiteMapPath_Default_SkipToContentText),
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WebSysDescription(SR.SiteMapPath_SkipToContentText)
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]
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public virtual String SkipLinkText {
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get {
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string s = ViewState["SkipLinkText"] as String;
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return s == null ? SR.GetString(SR.SiteMapPath_Default_SkipToContentText) : s;
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}
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set {
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ViewState["SkipLinkText"] = value;
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}
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}
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[
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DefaultValue(true),
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Themeable(false),
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WebCategory("Behavior"),
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WebSysDescription(SR.SiteMapPath_ShowToolTips)
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]
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public virtual bool ShowToolTips {
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get {
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object o = ViewState["ShowToolTips"];
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if (o == null) {
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return true;
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}
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return (bool)o;
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}
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set {
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ViewState["ShowToolTips"] = value;
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}
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}
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[
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DefaultValue(""),
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Themeable(false),
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WebCategory("Behavior"),
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WebSysDescription(SR.SiteMapPath_SiteMapProvider)
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]
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public virtual string SiteMapProvider {
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get {
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string provider = ViewState["SiteMapProvider"] as string;
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return (provider == null) ? String.Empty : provider;
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}
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set {
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ViewState["SiteMapProvider"] = value;
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_provider = null;
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}
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}
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[
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WebCategory("Action"),
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WebSysDescription(SR.DataControls_OnItemCreated)
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]
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public event SiteMapNodeItemEventHandler ItemCreated {
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add {
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Events.AddHandler(_eventItemCreated, value);
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}
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remove {
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Events.RemoveHandler(_eventItemCreated, value);
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}
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}
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/// <devdoc>
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/// <para>Occurs when an item is databound within a <see cref='System.Web.UI.WebControls.SiteMapPath'/> control tree.</para>
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/// </devdoc>
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[
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WebCategory("Action"),
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WebSysDescription(SR.SiteMapPath_OnItemDataBound)
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]
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public event SiteMapNodeItemEventHandler ItemDataBound {
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add {
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Events.AddHandler(_eventItemDataBound, value);
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}
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remove {
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Events.RemoveHandler(_eventItemDataBound, value);
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}
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}
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/// <internalonly/>
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/// <devdoc>
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/// </devdoc>
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protected internal override void CreateChildControls() {
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Controls.Clear();
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CreateControlHierarchy();
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ClearChildState();
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}
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/// <devdoc>
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/// A protected method. Creates a control hierarchy based on current sitemap OM.
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/// </devdoc>
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protected virtual void CreateControlHierarchy() {
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if (Provider == null)
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return;
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int index = 0;
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CreateMergedStyles();
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SiteMapNode currentNode = Provider.GetCurrentNodeAndHintAncestorNodes(-1);
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if (currentNode != null) {
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SiteMapNode parentNode = currentNode.ParentNode;
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if (parentNode != null) {
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CreateControlHierarchyRecursive(ref index, parentNode, ParentLevelsDisplayed);
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}
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CreateItem(index++, SiteMapNodeItemType.Current, currentNode);
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}
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}
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private void CreateControlHierarchyRecursive(ref int index, SiteMapNode node, int parentLevels) {
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if (parentLevels == 0)
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return;
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SiteMapNode parentNode = node.ParentNode;
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if (parentNode != null) {
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CreateControlHierarchyRecursive(ref index, parentNode, parentLevels - 1);
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CreateItem(index++, SiteMapNodeItemType.Parent, node);
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}
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else {
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CreateItem(index++, SiteMapNodeItemType.Root, node);
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}
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CreateItem(index, SiteMapNodeItemType.PathSeparator, null);
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}
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private SiteMapNodeItem CreateItem(int itemIndex, SiteMapNodeItemType itemType, SiteMapNode node) {
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SiteMapNodeItem item = new SiteMapNodeItem(itemIndex, itemType);
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int index = (PathDirection == PathDirection.CurrentToRoot ? 0 : -1);
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SiteMapNodeItemEventArgs e = new SiteMapNodeItemEventArgs(item);
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//Add sitemap nodes so that they are accessible during events.
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item.SiteMapNode = node;
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InitializeItem(item);
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// Notify items
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OnItemCreated(e);
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// Add items based on PathDirection.
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Controls.AddAt(index, item);
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// Databind.
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item.DataBind();
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// Notify items.
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OnItemDataBound(e);
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item.SiteMapNode = null;
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// SiteMapNodeItem is dynamically created each time, don't track viewstate.
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item.EnableViewState = false;
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return item;
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}
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private void CopyStyle(Style toStyle, Style fromStyle) {
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Debug.Assert(toStyle != null);
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// Review: How to change the default value of Font.Underline?
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if (fromStyle != null && fromStyle.IsSet(System.Web.UI.WebControls.Style.PROP_FONT_UNDERLINE))
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toStyle.Font.Underline = fromStyle.Font.Underline;
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toStyle.CopyFrom(fromStyle);
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}
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private void CreateMergedStyles() {
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_mergedCurrentNodeStyle = new Style();
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CopyStyle(_mergedCurrentNodeStyle, _nodeStyle);
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CopyStyle(_mergedCurrentNodeStyle, _currentNodeStyle);
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_mergedRootNodeStyle = new Style();
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CopyStyle(_mergedRootNodeStyle, _nodeStyle);
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CopyStyle(_mergedRootNodeStyle, _rootNodeStyle);
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}
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/// <internalonly/>
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/// <devdoc>
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/// <para>Overriden to handle our own databinding.</para>
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/// </devdoc>
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public override void DataBind() {
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// do our own databinding
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OnDataBinding(EventArgs.Empty);
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// contained items will be databound after they have been created,
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// so we don't want to walk the hierarchy here.
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}
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/// <devdoc>
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/// <para>A protected method. Populates iteratively the specified <see cref='System.Web.UI.WebControls.SiteMapNodeItem'/> with a
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/// sub-hierarchy of child controls.</para>
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/// </devdoc>
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protected virtual void InitializeItem(SiteMapNodeItem item) {
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Debug.Assert(_mergedCurrentNodeStyle != null && _mergedRootNodeStyle != null);
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ITemplate template = null;
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Style style = null;
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SiteMapNodeItemType itemType = item.ItemType;
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SiteMapNode node = item.SiteMapNode;
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switch (itemType) {
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case SiteMapNodeItemType.Root:
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template = RootNodeTemplate != null ? RootNodeTemplate : NodeTemplate;
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style = _mergedRootNodeStyle;
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break;
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case SiteMapNodeItemType.Parent:
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template = NodeTemplate;
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style = _nodeStyle;
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break;
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case SiteMapNodeItemType.Current:
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template = CurrentNodeTemplate != null ? CurrentNodeTemplate : NodeTemplate;
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style = _mergedCurrentNodeStyle;
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break;
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case SiteMapNodeItemType.PathSeparator:
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template = PathSeparatorTemplate;
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style = _pathSeparatorStyle;
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break;
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}
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if (template == null) {
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if (itemType == SiteMapNodeItemType.PathSeparator) {
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Literal separatorLiteral = new Literal();
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separatorLiteral.Mode = LiteralMode.Encode;
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separatorLiteral.Text = PathSeparator;
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item.Controls.Add(separatorLiteral);
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item.ApplyStyle(style);
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}
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else if (itemType == SiteMapNodeItemType.Current && !RenderCurrentNodeAsLink) {
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Literal currentNodeLiteral = new Literal();
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currentNodeLiteral.Mode = LiteralMode.Encode;
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currentNodeLiteral.Text = node.Title;
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item.Controls.Add(currentNodeLiteral);
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item.ApplyStyle(style);
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}
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else {
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HyperLink link = new HyperLink();
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if (style != null && style.IsSet(System.Web.UI.WebControls.Style.PROP_FONT_UNDERLINE))
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link.Font.Underline = style.Font.Underline;
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link.EnableTheming = false;
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link.Enabled = this.Enabled;
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// VSWhidbey 281869 Don't modify input when url pointing to unc share
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if (node.Url.StartsWith("\\\\", StringComparison.Ordinal)) {
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link.NavigateUrl = ResolveClientUrl(HttpUtility.UrlPathEncode(node.Url));
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}
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else {
|
|
link.NavigateUrl = Context != null ?
|
|
Context.Response.ApplyAppPathModifier(ResolveClientUrl(HttpUtility.UrlPathEncode(node.Url))) : node.Url;
|
|
}
|
|
link.Text = HttpUtility.HtmlEncode(node.Title);
|
|
if (ShowToolTips)
|
|
link.ToolTip = node.Description;
|
|
item.Controls.Add(link);
|
|
link.ApplyStyle(style);
|
|
}
|
|
}
|
|
else {
|
|
template.InstantiateIn(item);
|
|
item.ApplyStyle(style);
|
|
}
|
|
}
|
|
|
|
|
|
/// <internalonly/>
|
|
/// <devdoc>
|
|
/// <para>Loads a saved state of the <see cref='System.Web.UI.WebControls.SiteMapPath'/>. </para>
|
|
/// </devdoc>
|
|
protected override void LoadViewState(object savedState) {
|
|
if (savedState != null) {
|
|
object[] myState = (object[])savedState;
|
|
|
|
Debug.Assert(myState.Length == 5);
|
|
|
|
base.LoadViewState(myState[0]);
|
|
|
|
if (myState[1] != null)
|
|
((IStateManager)CurrentNodeStyle).LoadViewState(myState[1]);
|
|
|
|
if (myState[2] != null)
|
|
((IStateManager)NodeStyle).LoadViewState(myState[2]);
|
|
|
|
if (myState[3] != null)
|
|
((IStateManager)RootNodeStyle).LoadViewState(myState[3]);
|
|
|
|
if (myState[4] != null)
|
|
((IStateManager)PathSeparatorStyle).LoadViewState(myState[4]);
|
|
}
|
|
else {
|
|
base.LoadViewState(null);
|
|
}
|
|
}
|
|
|
|
|
|
/// <internalonly/>
|
|
/// <devdoc>
|
|
/// <para>A protected method. Raises the <see langword='DataBinding'/> event.</para>
|
|
/// </devdoc>
|
|
protected override void OnDataBinding(EventArgs e) {
|
|
base.OnDataBinding(e);
|
|
|
|
// reset the control state
|
|
Controls.Clear();
|
|
ClearChildState();
|
|
|
|
CreateControlHierarchy();
|
|
ChildControlsCreated = true;
|
|
}
|
|
|
|
|
|
/// <devdoc>
|
|
/// <para>A protected method. Raises the <see langword='ItemCreated'/> event.</para>
|
|
/// </devdoc>
|
|
protected virtual void OnItemCreated(SiteMapNodeItemEventArgs e) {
|
|
SiteMapNodeItemEventHandler onItemCreatedHandler =
|
|
(SiteMapNodeItemEventHandler)Events[_eventItemCreated];
|
|
if (onItemCreatedHandler != null) {
|
|
onItemCreatedHandler(this, e);
|
|
}
|
|
}
|
|
|
|
|
|
/// <devdoc>
|
|
/// <para>A protected method. Raises the <see langword='ItemDataBound'/>
|
|
/// event.</para>
|
|
/// </devdoc>
|
|
protected virtual void OnItemDataBound(SiteMapNodeItemEventArgs e) {
|
|
SiteMapNodeItemEventHandler onItemDataBoundHandler =
|
|
(SiteMapNodeItemEventHandler)Events[_eventItemDataBound];
|
|
if (onItemDataBoundHandler != null) {
|
|
onItemDataBoundHandler(this, e);
|
|
}
|
|
}
|
|
|
|
|
|
/// <devdoc>
|
|
/// </devdoc>
|
|
protected internal override void Render(HtmlTextWriter writer) {
|
|
// Copied from CompositeControl.cs
|
|
if (DesignMode) {
|
|
ChildControlsCreated = false;
|
|
EnsureChildControls();
|
|
}
|
|
|
|
base.Render(writer);
|
|
}
|
|
|
|
|
|
/// <devdoc>
|
|
/// Adds the SkipToContextText.
|
|
/// </devdoc>
|
|
|
|
protected internal override void RenderContents(HtmlTextWriter writer) {
|
|
ControlRenderingHelper.WriteSkipLinkStart(writer, RenderingCompatibility, DesignMode, SkipLinkText, SpacerImageUrl, ClientID);
|
|
|
|
base.RenderContents(writer);
|
|
|
|
ControlRenderingHelper.WriteSkipLinkEnd(writer, DesignMode, SkipLinkText, ClientID);
|
|
}
|
|
|
|
/// <internalonly/>
|
|
/// <devdoc>
|
|
/// <para>Stores the state of the System.Web.UI.WebControls.SiteMapPath.</para>
|
|
/// </devdoc>
|
|
protected override object SaveViewState() {
|
|
object[] myState = new object[5];
|
|
|
|
myState[0] = base.SaveViewState();
|
|
myState[1] = (_currentNodeStyle != null) ? ((IStateManager)_currentNodeStyle).SaveViewState() : null;
|
|
myState[2] = (_nodeStyle != null) ? ((IStateManager)_nodeStyle).SaveViewState() : null;
|
|
myState[3] = (_rootNodeStyle != null) ? ((IStateManager)_rootNodeStyle).SaveViewState() : null;
|
|
myState[4] = (_pathSeparatorStyle != null) ? ((IStateManager)_pathSeparatorStyle).SaveViewState() : null;
|
|
|
|
for (int i = 0; i < myState.Length; i++) {
|
|
if (myState[i] != null)
|
|
return myState;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <internalonly/>
|
|
/// <devdoc>
|
|
/// <para>Marks the starting point to begin tracking and saving changes to the
|
|
/// control as part of the control viewstate.</para>
|
|
/// </devdoc>
|
|
protected override void TrackViewState() {
|
|
base.TrackViewState();
|
|
|
|
if (_currentNodeStyle != null)
|
|
((IStateManager)_currentNodeStyle).TrackViewState();
|
|
|
|
if (_nodeStyle != null)
|
|
((IStateManager)_nodeStyle).TrackViewState();
|
|
|
|
if (_rootNodeStyle != null)
|
|
((IStateManager)_rootNodeStyle).TrackViewState();
|
|
|
|
if (_pathSeparatorStyle != null)
|
|
((IStateManager)_pathSeparatorStyle).TrackViewState();
|
|
}
|
|
}
|
|
}
|