Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / clr / src / BCL / System / Security / Permissions / FileDialogPermission.cs / 1 / FileDialogPermission.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // FileDialogPermission.cs // namespace System.Security.Permissions { using System; using System.Text; using System.Security; using System.Security.Util; using System.IO; using System.Runtime.Serialization; using System.Reflection; using System.Collections; using System.Globalization; [Serializable, Flags] [System.Runtime.InteropServices.ComVisible(true)] public enum FileDialogPermissionAccess { None = 0x00, Open = 0x01, Save = 0x02, OpenSave = Open | Save } [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public sealed class FileDialogPermission : CodeAccessPermission, IUnrestrictedPermission, IBuiltInPermission { FileDialogPermissionAccess access; public FileDialogPermission(PermissionState state) { if (state == PermissionState.Unrestricted) { SetUnrestricted(true); } else if (state == PermissionState.None) { SetUnrestricted(false); Reset(); } else { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState")); } } public FileDialogPermission(FileDialogPermissionAccess access) { VerifyAccess(access); this.access = access; } public FileDialogPermissionAccess Access { get { return access; } set { VerifyAccess(value); access = value; } } public override IPermission Copy() { return new FileDialogPermission(this.access); } public override void FromXml(SecurityElement esd) { CodeAccessPermission.ValidateElement(esd, this); if (XMLUtil.IsUnrestricted(esd)) { SetUnrestricted(true); return; } access = FileDialogPermissionAccess.None; string accessXml = esd.Attribute("Access"); if (accessXml != null) access = (FileDialogPermissionAccess)Enum.Parse(typeof(FileDialogPermissionAccess), accessXml); } ///int IBuiltInPermission.GetTokenIndex() { return FileDialogPermission.GetTokenIndex(); } internal static int GetTokenIndex() { return BuiltInPermissionIndex.FileDialogPermissionIndex; } public override IPermission Intersect(IPermission target) { if (target == null) { return null; } else if (!VerifyType(target)) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName)); } FileDialogPermission operand = (FileDialogPermission)target; FileDialogPermissionAccess intersectAccess = access & operand.Access; if (intersectAccess == FileDialogPermissionAccess.None) return null; else return new FileDialogPermission(intersectAccess); } public override bool IsSubsetOf(IPermission target) { if (target == null) { // Only safe subset if this is empty return access == FileDialogPermissionAccess.None; } try { FileDialogPermission operand = (FileDialogPermission)target; if (operand.IsUnrestricted()) { return true; } else if (this.IsUnrestricted()) { return false; } else { int open = (int)(access & FileDialogPermissionAccess.Open); int save = (int)(access & FileDialogPermissionAccess.Save); int openTarget = (int)(operand.Access & FileDialogPermissionAccess.Open); int saveTarget = (int)(operand.Access & FileDialogPermissionAccess.Save); return open <= openTarget && save <= saveTarget; } } catch (InvalidCastException) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName)); } } public bool IsUnrestricted() { return access == FileDialogPermissionAccess.OpenSave; } void Reset() { access = FileDialogPermissionAccess.None; } void SetUnrestricted( bool unrestricted ) { if (unrestricted) { access = FileDialogPermissionAccess.OpenSave; } } public override SecurityElement ToXml() { SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.FileDialogPermission" ); if (!IsUnrestricted()) { if (access != FileDialogPermissionAccess.None) { esd.AddAttribute("Access", Enum.GetName(typeof(FileDialogPermissionAccess), access)); } } else { esd.AddAttribute("Unrestricted", "true"); } return esd; } public override IPermission Union(IPermission target) { if (target == null) { return this.Copy(); } else if (!VerifyType(target)) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName)); } FileDialogPermission operand = (FileDialogPermission)target; return new FileDialogPermission(access | operand.Access); } static void VerifyAccess(FileDialogPermissionAccess access) { if ((access & ~FileDialogPermissionAccess.OpenSave) != 0 ) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Arg_EnumIllegalVal"), (int)access)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // FileDialogPermission.cs // namespace System.Security.Permissions { using System; using System.Text; using System.Security; using System.Security.Util; using System.IO; using System.Runtime.Serialization; using System.Reflection; using System.Collections; using System.Globalization; [Serializable, Flags] [System.Runtime.InteropServices.ComVisible(true)] public enum FileDialogPermissionAccess { None = 0x00, Open = 0x01, Save = 0x02, OpenSave = Open | Save } [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public sealed class FileDialogPermission : CodeAccessPermission, IUnrestrictedPermission, IBuiltInPermission { FileDialogPermissionAccess access; public FileDialogPermission(PermissionState state) { if (state == PermissionState.Unrestricted) { SetUnrestricted(true); } else if (state == PermissionState.None) { SetUnrestricted(false); Reset(); } else { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState")); } } public FileDialogPermission(FileDialogPermissionAccess access) { VerifyAccess(access); this.access = access; } public FileDialogPermissionAccess Access { get { return access; } set { VerifyAccess(value); access = value; } } public override IPermission Copy() { return new FileDialogPermission(this.access); } public override void FromXml(SecurityElement esd) { CodeAccessPermission.ValidateElement(esd, this); if (XMLUtil.IsUnrestricted(esd)) { SetUnrestricted(true); return; } access = FileDialogPermissionAccess.None; string accessXml = esd.Attribute("Access"); if (accessXml != null) access = (FileDialogPermissionAccess)Enum.Parse(typeof(FileDialogPermissionAccess), accessXml); } /// int IBuiltInPermission.GetTokenIndex() { return FileDialogPermission.GetTokenIndex(); } internal static int GetTokenIndex() { return BuiltInPermissionIndex.FileDialogPermissionIndex; } public override IPermission Intersect(IPermission target) { if (target == null) { return null; } else if (!VerifyType(target)) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName)); } FileDialogPermission operand = (FileDialogPermission)target; FileDialogPermissionAccess intersectAccess = access & operand.Access; if (intersectAccess == FileDialogPermissionAccess.None) return null; else return new FileDialogPermission(intersectAccess); } public override bool IsSubsetOf(IPermission target) { if (target == null) { // Only safe subset if this is empty return access == FileDialogPermissionAccess.None; } try { FileDialogPermission operand = (FileDialogPermission)target; if (operand.IsUnrestricted()) { return true; } else if (this.IsUnrestricted()) { return false; } else { int open = (int)(access & FileDialogPermissionAccess.Open); int save = (int)(access & FileDialogPermissionAccess.Save); int openTarget = (int)(operand.Access & FileDialogPermissionAccess.Open); int saveTarget = (int)(operand.Access & FileDialogPermissionAccess.Save); return open <= openTarget && save <= saveTarget; } } catch (InvalidCastException) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName)); } } public bool IsUnrestricted() { return access == FileDialogPermissionAccess.OpenSave; } void Reset() { access = FileDialogPermissionAccess.None; } void SetUnrestricted( bool unrestricted ) { if (unrestricted) { access = FileDialogPermissionAccess.OpenSave; } } public override SecurityElement ToXml() { SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.FileDialogPermission" ); if (!IsUnrestricted()) { if (access != FileDialogPermissionAccess.None) { esd.AddAttribute("Access", Enum.GetName(typeof(FileDialogPermissionAccess), access)); } } else { esd.AddAttribute("Unrestricted", "true"); } return esd; } public override IPermission Union(IPermission target) { if (target == null) { return this.Copy(); } else if (!VerifyType(target)) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName)); } FileDialogPermission operand = (FileDialogPermission)target; return new FileDialogPermission(access | operand.Access); } static void VerifyAccess(FileDialogPermissionAccess access) { if ((access & ~FileDialogPermissionAccess.OpenSave) != 0 ) { throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Arg_EnumIllegalVal"), (int)access)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
![Network programming in C#, Network Programming in VB.NET, Network Programming in .NET](/images/book.jpg)
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DataGridViewAutoSizeColumnsModeEventArgs.cs
- controlskin.cs
- GC.cs
- RightsManagementEncryptedStream.cs
- FixedTextPointer.cs
- TableHeaderCell.cs
- BitmapEffect.cs
- CodeExporter.cs
- GridErrorDlg.cs
- ChannelParameterCollection.cs
- TemplateLookupAction.cs
- PopupEventArgs.cs
- CheckedPointers.cs
- DataMisalignedException.cs
- XNodeSchemaApplier.cs
- TextRangeBase.cs
- SchemaNamespaceManager.cs
- HttpRuntimeSection.cs
- DataServiceQuery.cs
- DefaultTextStoreTextComposition.cs
- CryptoHandle.cs
- ThousandthOfEmRealPoints.cs
- SQLDateTimeStorage.cs
- XmlDataCollection.cs
- ObservableCollection.cs
- ClientTargetCollection.cs
- RelationshipManager.cs
- GridEntryCollection.cs
- PageSettings.cs
- HttpCookieCollection.cs
- UrlPropertyAttribute.cs
- DefaultPrintController.cs
- XmlUtil.cs
- AsymmetricKeyExchangeFormatter.cs
- DataControlExtensions.cs
- NativeMethods.cs
- Latin1Encoding.cs
- SystemIPv6InterfaceProperties.cs
- GridLength.cs
- DataFormat.cs
- GotoExpression.cs
- HttpEncoder.cs
- VisualProxy.cs
- AttributeXamlType.cs
- PersistenceTypeAttribute.cs
- Vertex.cs
- AccessDataSource.cs
- OdbcConnectionHandle.cs
- PropertyInfo.cs
- MultidimensionalArrayItemReference.cs
- Content.cs
- DataGridViewControlCollection.cs
- EntryWrittenEventArgs.cs
- UInt64Storage.cs
- EmptyCollection.cs
- Int32AnimationUsingKeyFrames.cs
- PropertyValue.cs
- XmlSerializerObjectSerializer.cs
- OleDbCommandBuilder.cs
- ContextProperty.cs
- CheckBox.cs
- VirtualizedItemPattern.cs
- FileVersion.cs
- SessionPageStateSection.cs
- BinaryMethodMessage.cs
- ActionItem.cs
- HtmlControlPersistable.cs
- FixedTextContainer.cs
- IdentitySection.cs
- RightsManagementLicense.cs
- LocalValueEnumerator.cs
- NamedObject.cs
- util.cs
- CroppedBitmap.cs
- StringUtil.cs
- TextElementEnumerator.cs
- CultureMapper.cs
- DocumentPageViewAutomationPeer.cs
- ReceiveParametersContent.cs
- SHA256Cng.cs
- BamlRecordWriter.cs
- DrawingGroupDrawingContext.cs
- TextTreeInsertUndoUnit.cs
- FixedSOMPageElement.cs
- ResourcesBuildProvider.cs
- TrimSurroundingWhitespaceAttribute.cs
- ConversionContext.cs
- ResourceDescriptionAttribute.cs
- Stack.cs
- WebPartZoneBaseDesigner.cs
- AdPostCacheSubstitution.cs
- EventMappingSettings.cs
- DrawingAttributeSerializer.cs
- SystemDiagnosticsSection.cs
- AttachedAnnotation.cs
- EncoderNLS.cs
- SimpleBitVector32.cs
- DataTemplateKey.cs
- RegisteredDisposeScript.cs
- CryptoApi.cs