Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / DEVDIV / depot / DevDiv / releases / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / WebControls / LoginView.cs / 3 / LoginView.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.Collections;
using System.ComponentModel;
using System.Security.Permissions;
using System.Security.Principal;
using System.Web.Security;
using System.Web.UI;
///
/// Renders exactly one of its templates, chosen by whether a user is logged in
/// and the roles that contain the user.
///
[
Bindable(false),
ParseChildren(true),
PersistChildren(false),
Designer("System.Web.UI.Design.WebControls.LoginViewDesigner," + AssemblyRef.SystemDesign),
DefaultProperty("CurrentView"),
DefaultEvent("ViewChanged"),
Themeable(true),
]
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class LoginView : Control, INamingContainer {
private RoleGroupCollection _roleGroups;
private ITemplate _loggedInTemplate;
private ITemplate _anonymousTemplate;
private int _templateIndex;
private const int anonymousTemplateIndex = 0;
private const int loggedInTemplateIndex = 1;
private const int roleGroupStartingIndex = 2;
private static readonly object EventViewChanging = new object();
private static readonly object EventViewChanged = new object();
///
/// Template shown when no user is logged in.
///
[
Browsable(false),
DefaultValue(null),
PersistenceMode(PersistenceMode.InnerProperty),
TemplateContainer(typeof(LoginView)),
]
public virtual ITemplate AnonymousTemplate {
get {
return _anonymousTemplate;
}
set {
_anonymousTemplate = value;
}
}
[
Browsable(true),
]
public override bool EnableTheming {
get {
return base.EnableTheming;
}
set {
base.EnableTheming = value;
}
}
[
Browsable(true),
]
public override string SkinID {
get {
return base.SkinID;
}
set {
base.SkinID = value;
}
}
///
/// Copied from CompositeControl. This control does not extend CompositeControl because it should not be a WebControl.
///
public override ControlCollection Controls {
get {
EnsureChildControls();
return base.Controls;
}
}
///
/// Copied from CompositeControl. This control does not extend CompositeControl because it should not be a WebControl.
/// Does not call Base.DataBind(), since we need to call EnsureChildControls() between
/// OnDataBinding() and DataBindChildren().
///
public override void DataBind() {
// Do our own databinding
OnDataBinding(EventArgs.Empty);
EnsureChildControls();
// Do all of our children's databinding
DataBindChildren();
}
///
/// Template shown when a user is logged in, but the user is not in any role associated with a template.
///
[
Browsable(false),
DefaultValue(null),
PersistenceMode(PersistenceMode.InnerProperty),
TemplateContainer(typeof(LoginView)),
]
public virtual ITemplate LoggedInTemplate {
get {
return _loggedInTemplate;
}
set {
_loggedInTemplate = value;
}
}
///
/// Maps groups of roles to templates.
///
[
WebCategory("Behavior"),
MergableProperty(false),
Themeable(false),
Filterable(false),
PersistenceMode(PersistenceMode.InnerProperty),
WebSysDescription(SR.LoginView_RoleGroups)
]
public virtual RoleGroupCollection RoleGroups {
get {
if (_roleGroups == null) {
_roleGroups = new RoleGroupCollection();
}
return _roleGroups;
}
}
///
/// Index of the template rendered on the previous page load. Saved in ControlState.
/// 0: AnonymousTemplate
/// 1: LoggedInTemplate
/// >=2: RoleGroup template with index n-2
///
private int TemplateIndex {
get {
return _templateIndex;
}
set {
if (value != TemplateIndex) {
OnViewChanging(EventArgs.Empty);
_templateIndex = value;
ChildControlsCreated = false;
OnViewChanged(EventArgs.Empty);
}
}
}
///
/// Raised after the view is changed.
///
[
WebCategory("Action"),
WebSysDescription(SR.LoginView_ViewChanged)
]
public event EventHandler ViewChanged {
add {
Events.AddHandler(EventViewChanged, value);
}
remove {
Events.RemoveHandler(EventViewChanged, value);
}
}
///
/// Raised before the view is changed. Not cancellable, because the view is changed
/// when the logged-in user changes, and it wouldn't make sense to cancel this.
///
[
WebCategory("Action"),
WebSysDescription(SR.LoginView_ViewChanging)
]
public event EventHandler ViewChanging {
add {
Events.AddHandler(EventViewChanging, value);
}
remove {
Events.RemoveHandler(EventViewChanging, value);
}
}
///
/// Instantiate the appropriate template.
///
protected internal override void CreateChildControls() {
Controls.Clear();
// For the first request, set _templateIndex now, so the correct template is
// instantiated and we do not raise the ViewChanging/ViewChanged events.
Page page = Page;
if (page != null && !page.IsPostBack && !DesignMode) {
_templateIndex = GetTemplateIndex();
}
int templateIndex = TemplateIndex;
ITemplate template = null;
switch (templateIndex) {
case anonymousTemplateIndex:
template = AnonymousTemplate;
break;
case loggedInTemplateIndex:
template = LoggedInTemplate;
break;
default:
int roleGroupIndex = templateIndex - roleGroupStartingIndex;
RoleGroupCollection roleGroups = RoleGroups;
if (0 <= roleGroupIndex && roleGroupIndex < roleGroups.Count) {
template = roleGroups[roleGroupIndex].ContentTemplate;
}
break;
}
if (template != null) {
Control templateContainer = new Control();
template.InstantiateIn(templateContainer);
Controls.Add(templateContainer);
}
}
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override void Focus() {
throw new NotSupportedException(SR.GetString(SR.NoFocusSupport, this.GetType().Name));
}
///
/// Loads the control state for those properties that should persist across postbacks
/// even when EnableViewState=false.
///
protected internal override void LoadControlState(object savedState) {
if (savedState != null) {
Pair state = (Pair)savedState;
if (state.First != null) {
base.LoadControlState(state.First);
}
if (state.Second != null) {
_templateIndex = (int)state.Second;
}
}
}
protected internal override void OnInit(EventArgs e) {
base.OnInit(e);
if (Page != null) {
Page.RegisterRequiresControlState(this);
}
}
///
/// Sets the TemplateIndex based on the current user.
///
protected internal override void OnPreRender(EventArgs e) {
base.OnPreRender(e);
TemplateIndex = GetTemplateIndex();
// This is called in Control.PreRenderRecursiveInteral, but we need to call it again
// since we may have changed the TemplateIndex
EnsureChildControls();
}
///
/// Raises the ViewChanged event.
///
protected virtual void OnViewChanged(EventArgs e) {
EventHandler handler = (EventHandler)Events[EventViewChanged];
if (handler != null) {
handler(this, e);
}
}
///
/// Raises the ViewChanging event.
///
protected virtual void OnViewChanging(EventArgs e) {
EventHandler handler = (EventHandler)Events[EventViewChanging];
if (handler != null) {
handler(this, e);
}
}
protected internal override void Render(HtmlTextWriter writer) {
EnsureChildControls();
base.Render(writer);
}
///
/// Saves the control state for those properties that should persist across postbacks
/// even when EnableViewState=false.
///
protected internal override object SaveControlState() {
object baseState = base.SaveControlState();
if (baseState != null || _templateIndex != 0) {
object templateIndexState = null;
if (_templateIndex != 0) {
templateIndexState = _templateIndex;
}
return new Pair(baseState, templateIndexState);
}
return null;
}
///
/// Allows the designer to set the TemplateIndex, so the different templates can be shown in the designer.
///
[SecurityPermission(SecurityAction.Demand, Unrestricted = true)]
protected override void SetDesignModeState(IDictionary data) {
if (data != null) {
object o = data["TemplateIndex"];
if (o != null) {
TemplateIndex = (int)o;
// Note: we always recreate the child controls in the designer to correctly handle the case of
// the currently selected role group being deleted. This is necessary because the
// setter for TemplateIndex won't recreate the controls if the TemplateIndex is unchanged,
// which is the case when deleting all but the last role group. [Fix for Bug 148406]
ChildControlsCreated = false;
}
}
}
private int GetTemplateIndex() {
if (!DesignMode && Page != null && Page.Request.IsAuthenticated) {
IPrincipal user = LoginUtil.GetUser(this);
int roleGroupIndex = -1;
// Unlikely but possible for Page.Request.IsAuthenticated to be true and
// user to be null.
if (user != null) {
roleGroupIndex = RoleGroups.GetMatchingRoleGroupInternal(user);
}
if (roleGroupIndex >= 0) {
return roleGroupIndex + roleGroupStartingIndex;
}
else {
return loggedInTemplateIndex;
}
}
else {
return anonymousTemplateIndex;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.Collections;
using System.ComponentModel;
using System.Security.Permissions;
using System.Security.Principal;
using System.Web.Security;
using System.Web.UI;
///
/// Renders exactly one of its templates, chosen by whether a user is logged in
/// and the roles that contain the user.
///
[
Bindable(false),
ParseChildren(true),
PersistChildren(false),
Designer("System.Web.UI.Design.WebControls.LoginViewDesigner," + AssemblyRef.SystemDesign),
DefaultProperty("CurrentView"),
DefaultEvent("ViewChanged"),
Themeable(true),
]
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public class LoginView : Control, INamingContainer {
private RoleGroupCollection _roleGroups;
private ITemplate _loggedInTemplate;
private ITemplate _anonymousTemplate;
private int _templateIndex;
private const int anonymousTemplateIndex = 0;
private const int loggedInTemplateIndex = 1;
private const int roleGroupStartingIndex = 2;
private static readonly object EventViewChanging = new object();
private static readonly object EventViewChanged = new object();
///
/// Template shown when no user is logged in.
///
[
Browsable(false),
DefaultValue(null),
PersistenceMode(PersistenceMode.InnerProperty),
TemplateContainer(typeof(LoginView)),
]
public virtual ITemplate AnonymousTemplate {
get {
return _anonymousTemplate;
}
set {
_anonymousTemplate = value;
}
}
[
Browsable(true),
]
public override bool EnableTheming {
get {
return base.EnableTheming;
}
set {
base.EnableTheming = value;
}
}
[
Browsable(true),
]
public override string SkinID {
get {
return base.SkinID;
}
set {
base.SkinID = value;
}
}
///
/// Copied from CompositeControl. This control does not extend CompositeControl because it should not be a WebControl.
///
public override ControlCollection Controls {
get {
EnsureChildControls();
return base.Controls;
}
}
///
/// Copied from CompositeControl. This control does not extend CompositeControl because it should not be a WebControl.
/// Does not call Base.DataBind(), since we need to call EnsureChildControls() between
/// OnDataBinding() and DataBindChildren().
///
public override void DataBind() {
// Do our own databinding
OnDataBinding(EventArgs.Empty);
EnsureChildControls();
// Do all of our children's databinding
DataBindChildren();
}
///
/// Template shown when a user is logged in, but the user is not in any role associated with a template.
///
[
Browsable(false),
DefaultValue(null),
PersistenceMode(PersistenceMode.InnerProperty),
TemplateContainer(typeof(LoginView)),
]
public virtual ITemplate LoggedInTemplate {
get {
return _loggedInTemplate;
}
set {
_loggedInTemplate = value;
}
}
///
/// Maps groups of roles to templates.
///
[
WebCategory("Behavior"),
MergableProperty(false),
Themeable(false),
Filterable(false),
PersistenceMode(PersistenceMode.InnerProperty),
WebSysDescription(SR.LoginView_RoleGroups)
]
public virtual RoleGroupCollection RoleGroups {
get {
if (_roleGroups == null) {
_roleGroups = new RoleGroupCollection();
}
return _roleGroups;
}
}
///
/// Index of the template rendered on the previous page load. Saved in ControlState.
/// 0: AnonymousTemplate
/// 1: LoggedInTemplate
/// >=2: RoleGroup template with index n-2
///
private int TemplateIndex {
get {
return _templateIndex;
}
set {
if (value != TemplateIndex) {
OnViewChanging(EventArgs.Empty);
_templateIndex = value;
ChildControlsCreated = false;
OnViewChanged(EventArgs.Empty);
}
}
}
///
/// Raised after the view is changed.
///
[
WebCategory("Action"),
WebSysDescription(SR.LoginView_ViewChanged)
]
public event EventHandler ViewChanged {
add {
Events.AddHandler(EventViewChanged, value);
}
remove {
Events.RemoveHandler(EventViewChanged, value);
}
}
///
/// Raised before the view is changed. Not cancellable, because the view is changed
/// when the logged-in user changes, and it wouldn't make sense to cancel this.
///
[
WebCategory("Action"),
WebSysDescription(SR.LoginView_ViewChanging)
]
public event EventHandler ViewChanging {
add {
Events.AddHandler(EventViewChanging, value);
}
remove {
Events.RemoveHandler(EventViewChanging, value);
}
}
///
/// Instantiate the appropriate template.
///
protected internal override void CreateChildControls() {
Controls.Clear();
// For the first request, set _templateIndex now, so the correct template is
// instantiated and we do not raise the ViewChanging/ViewChanged events.
Page page = Page;
if (page != null && !page.IsPostBack && !DesignMode) {
_templateIndex = GetTemplateIndex();
}
int templateIndex = TemplateIndex;
ITemplate template = null;
switch (templateIndex) {
case anonymousTemplateIndex:
template = AnonymousTemplate;
break;
case loggedInTemplateIndex:
template = LoggedInTemplate;
break;
default:
int roleGroupIndex = templateIndex - roleGroupStartingIndex;
RoleGroupCollection roleGroups = RoleGroups;
if (0 <= roleGroupIndex && roleGroupIndex < roleGroups.Count) {
template = roleGroups[roleGroupIndex].ContentTemplate;
}
break;
}
if (template != null) {
Control templateContainer = new Control();
template.InstantiateIn(templateContainer);
Controls.Add(templateContainer);
}
}
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override void Focus() {
throw new NotSupportedException(SR.GetString(SR.NoFocusSupport, this.GetType().Name));
}
///
/// Loads the control state for those properties that should persist across postbacks
/// even when EnableViewState=false.
///
protected internal override void LoadControlState(object savedState) {
if (savedState != null) {
Pair state = (Pair)savedState;
if (state.First != null) {
base.LoadControlState(state.First);
}
if (state.Second != null) {
_templateIndex = (int)state.Second;
}
}
}
protected internal override void OnInit(EventArgs e) {
base.OnInit(e);
if (Page != null) {
Page.RegisterRequiresControlState(this);
}
}
///
/// Sets the TemplateIndex based on the current user.
///
protected internal override void OnPreRender(EventArgs e) {
base.OnPreRender(e);
TemplateIndex = GetTemplateIndex();
// This is called in Control.PreRenderRecursiveInteral, but we need to call it again
// since we may have changed the TemplateIndex
EnsureChildControls();
}
///
/// Raises the ViewChanged event.
///
protected virtual void OnViewChanged(EventArgs e) {
EventHandler handler = (EventHandler)Events[EventViewChanged];
if (handler != null) {
handler(this, e);
}
}
///
/// Raises the ViewChanging event.
///
protected virtual void OnViewChanging(EventArgs e) {
EventHandler handler = (EventHandler)Events[EventViewChanging];
if (handler != null) {
handler(this, e);
}
}
protected internal override void Render(HtmlTextWriter writer) {
EnsureChildControls();
base.Render(writer);
}
///
/// Saves the control state for those properties that should persist across postbacks
/// even when EnableViewState=false.
///
protected internal override object SaveControlState() {
object baseState = base.SaveControlState();
if (baseState != null || _templateIndex != 0) {
object templateIndexState = null;
if (_templateIndex != 0) {
templateIndexState = _templateIndex;
}
return new Pair(baseState, templateIndexState);
}
return null;
}
///
/// Allows the designer to set the TemplateIndex, so the different templates can be shown in the designer.
///
[SecurityPermission(SecurityAction.Demand, Unrestricted = true)]
protected override void SetDesignModeState(IDictionary data) {
if (data != null) {
object o = data["TemplateIndex"];
if (o != null) {
TemplateIndex = (int)o;
// Note: we always recreate the child controls in the designer to correctly handle the case of
// the currently selected role group being deleted. This is necessary because the
// setter for TemplateIndex won't recreate the controls if the TemplateIndex is unchanged,
// which is the case when deleting all but the last role group. [Fix for Bug 148406]
ChildControlsCreated = false;
}
}
}
private int GetTemplateIndex() {
if (!DesignMode && Page != null && Page.Request.IsAuthenticated) {
IPrincipal user = LoginUtil.GetUser(this);
int roleGroupIndex = -1;
// Unlikely but possible for Page.Request.IsAuthenticated to be true and
// user to be null.
if (user != null) {
roleGroupIndex = RoleGroups.GetMatchingRoleGroupInternal(user);
}
if (roleGroupIndex >= 0) {
return roleGroupIndex + roleGroupStartingIndex;
}
else {
return loggedInTemplateIndex;
}
}
else {
return anonymousTemplateIndex;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ExpressionCopier.cs
- ByteBufferPool.cs
- ObjectDataSource.cs
- UnmanagedMemoryStream.cs
- EventManager.cs
- NativeMethodsOther.cs
- DataControlPagerLinkButton.cs
- LocalizableAttribute.cs
- ToolStripDropDownClosedEventArgs.cs
- Accessible.cs
- WorkflowPersistenceService.cs
- SymDocumentType.cs
- DescendantBaseQuery.cs
- TreeNodeStyle.cs
- AndMessageFilter.cs
- ExclusiveTcpTransportManager.cs
- StrongTypingException.cs
- EntityStoreSchemaFilterEntry.cs
- XmlBindingWorker.cs
- ToolStripPanelRow.cs
- OleDbCommand.cs
- ProtectedProviderSettings.cs
- CodeLabeledStatement.cs
- AutoScrollHelper.cs
- ResourceSetExpression.cs
- MemberJoinTreeNode.cs
- InlinedAggregationOperator.cs
- VerticalAlignConverter.cs
- ToolZone.cs
- SafePEFileHandle.cs
- COM2PropertyDescriptor.cs
- EncoderFallback.cs
- XmlDocumentType.cs
- OleDbMetaDataFactory.cs
- DataTableExtensions.cs
- DataPointer.cs
- pingexception.cs
- CompressStream.cs
- RegexCharClass.cs
- SplineKeyFrames.cs
- FrameworkReadOnlyPropertyMetadata.cs
- BindableAttribute.cs
- SQLConvert.cs
- Triplet.cs
- CodeThrowExceptionStatement.cs
- Document.cs
- ServiceOperationInfoTypeConverter.cs
- PersistChildrenAttribute.cs
- LinearGradientBrush.cs
- PLINQETWProvider.cs
- EditorZone.cs
- EventSinkHelperWriter.cs
- ObfuscateAssemblyAttribute.cs
- ConfigurationSection.cs
- SortedList.cs
- EventTrigger.cs
- UrlEncodedParameterWriter.cs
- SQLResource.cs
- HitTestFilterBehavior.cs
- SmtpReplyReaderFactory.cs
- UrlParameterWriter.cs
- XPathSelfQuery.cs
- ProviderException.cs
- UrlPath.cs
- InstanceDescriptor.cs
- UrlMapping.cs
- CustomAssemblyResolver.cs
- PixelFormats.cs
- SqlTrackingService.cs
- CmsUtils.cs
- IncrementalHitTester.cs
- TextBox.cs
- UnsafeNativeMethods.cs
- XmlCharacterData.cs
- DrawingCollection.cs
- RuntimeArgumentHandle.cs
- ContentTextAutomationPeer.cs
- XpsResource.cs
- DataControlFieldTypeEditor.cs
- HostedHttpTransportManager.cs
- Slider.cs
- FilteredDataSetHelper.cs
- DockPattern.cs
- IFlowDocumentViewer.cs
- SerialPinChanges.cs
- CustomErrorsSection.cs
- ToolBarOverflowPanel.cs
- ContentPosition.cs
- QueryMatcher.cs
- OdbcReferenceCollection.cs
- PanelDesigner.cs
- TagPrefixAttribute.cs
- IPPacketInformation.cs
- ProviderException.cs
- SapiRecoContext.cs
- SchemaUtility.cs
- ControlIdConverter.cs
- ExpressionBindingCollection.cs
- XAMLParseException.cs
- DataTableMappingCollection.cs