Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Condition.cs / 2 / Condition.cs
using MS.Utility; using System.IO; using System.Windows.Markup; using System.ComponentModel; using System; using System.Windows.Data; namespace System.Windows { ////// Condition for a multiple property or data trigger /// public sealed class Condition { ////// Constructor with no property reference nor value /// public Condition() { _property = null; _binding = null; } ////// Constructor for creating a Condition /// public Condition( DependencyProperty conditionProperty, object conditionValue ) : this(conditionProperty, conditionValue, null) { // Call Forwarded } ////// Constructor for creating a Condition with the given property /// and value instead of creating an empty one and setting values later. /// ////// This constructor does parameter validation, which before doesn't /// happen until Seal() is called. We can do it here because we get /// both at the same time. /// public Condition( DependencyProperty conditionProperty, object conditionValue, string sourceName ) { if( conditionProperty == null ) { throw new ArgumentNullException("conditionProperty"); } if( !conditionProperty.IsValidValue( conditionValue ) ) { throw new ArgumentException(SR.Get(SRID.InvalidPropertyValue, conditionValue, conditionProperty.Name)); } _property = conditionProperty; Value = conditionValue; _sourceName = sourceName; } ////// Constructor for creating a Condition with the given binding declaration. /// and value. /// public Condition( BindingBase binding, object conditionValue ) { if( binding == null ) { throw new ArgumentNullException("binding"); } Binding = binding; Value = conditionValue; } ////// DepedencyProperty of the conditional /// [Ambient] [DefaultValue(null)] public DependencyProperty Property { get { return _property; } set { if (_sealed) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } if( _binding != null ) { throw new InvalidOperationException(SR.Get(SRID.ConditionCannotUseBothPropertyAndBinding)); } _property = value; } } ////// Binding of the conditional /// [DefaultValue(null)] public BindingBase Binding { get { return _binding; } set { if (_sealed) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } if( _property != null ) { throw new InvalidOperationException(SR.Get(SRID.ConditionCannotUseBothPropertyAndBinding)); } _binding = value; } } ////// Value of the condition (equality check) /// public object Value { get { return _value; } set { if (_sealed) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } if (value is MarkupExtension) { throw new ArgumentException(SR.Get(SRID.ConditionValueOfMarkupExtensionNotSupported, value.GetType().Name)); } if( value is Expression ) { throw new ArgumentException(SR.Get(SRID.ConditionValueOfExpressionNotSupported)); } _value = value; } } ////// The x:Name of the object whose property shall /// trigger the associated setters to be applied. /// If null, then this is the object being Styled /// and not anything under its Template Tree. /// [DefaultValue(null)] public string SourceName { get { return _sourceName; } set { if( _sealed ) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } _sourceName = value; } } ////// Seal the condition so that it can no longer be modified /// internal void Seal(ValueLookupType type) { if (_sealed) { return; } _sealed = true; // Ensure valid condition if (_property != null && _binding != null) throw new InvalidOperationException(SR.Get(SRID.ConditionCannotUseBothPropertyAndBinding)); switch (type) { case ValueLookupType.Trigger: case ValueLookupType.PropertyTriggerResource: if (_property == null) { throw new InvalidOperationException(SR.Get(SRID.NullPropertyIllegal, "Property")); } if (!_property.IsValidValue(_value)) { throw new InvalidOperationException(SR.Get(SRID.InvalidPropertyValue, _value, _property.Name)); } break; case ValueLookupType.DataTrigger: case ValueLookupType.DataTriggerResource: if (_binding == null) { throw new InvalidOperationException(SR.Get(SRID.NullPropertyIllegal, "Binding")); } break; default: throw new InvalidOperationException(SR.Get(SRID.UnexpectedValueTypeForCondition, type)); } // Freeze the condition value StyleHelper.SealIfSealable(_value); } private bool _sealed = false; private DependencyProperty _property; private BindingBase _binding; private object _value = DependencyProperty.UnsetValue; private string _sourceName = null; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using MS.Utility; using System.IO; using System.Windows.Markup; using System.ComponentModel; using System; using System.Windows.Data; namespace System.Windows { ////// Condition for a multiple property or data trigger /// public sealed class Condition { ////// Constructor with no property reference nor value /// public Condition() { _property = null; _binding = null; } ////// Constructor for creating a Condition /// public Condition( DependencyProperty conditionProperty, object conditionValue ) : this(conditionProperty, conditionValue, null) { // Call Forwarded } ////// Constructor for creating a Condition with the given property /// and value instead of creating an empty one and setting values later. /// ////// This constructor does parameter validation, which before doesn't /// happen until Seal() is called. We can do it here because we get /// both at the same time. /// public Condition( DependencyProperty conditionProperty, object conditionValue, string sourceName ) { if( conditionProperty == null ) { throw new ArgumentNullException("conditionProperty"); } if( !conditionProperty.IsValidValue( conditionValue ) ) { throw new ArgumentException(SR.Get(SRID.InvalidPropertyValue, conditionValue, conditionProperty.Name)); } _property = conditionProperty; Value = conditionValue; _sourceName = sourceName; } ////// Constructor for creating a Condition with the given binding declaration. /// and value. /// public Condition( BindingBase binding, object conditionValue ) { if( binding == null ) { throw new ArgumentNullException("binding"); } Binding = binding; Value = conditionValue; } ////// DepedencyProperty of the conditional /// [Ambient] [DefaultValue(null)] public DependencyProperty Property { get { return _property; } set { if (_sealed) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } if( _binding != null ) { throw new InvalidOperationException(SR.Get(SRID.ConditionCannotUseBothPropertyAndBinding)); } _property = value; } } ////// Binding of the conditional /// [DefaultValue(null)] public BindingBase Binding { get { return _binding; } set { if (_sealed) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } if( _property != null ) { throw new InvalidOperationException(SR.Get(SRID.ConditionCannotUseBothPropertyAndBinding)); } _binding = value; } } ////// Value of the condition (equality check) /// public object Value { get { return _value; } set { if (_sealed) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } if (value is MarkupExtension) { throw new ArgumentException(SR.Get(SRID.ConditionValueOfMarkupExtensionNotSupported, value.GetType().Name)); } if( value is Expression ) { throw new ArgumentException(SR.Get(SRID.ConditionValueOfExpressionNotSupported)); } _value = value; } } ////// The x:Name of the object whose property shall /// trigger the associated setters to be applied. /// If null, then this is the object being Styled /// and not anything under its Template Tree. /// [DefaultValue(null)] public string SourceName { get { return _sourceName; } set { if( _sealed ) { throw new InvalidOperationException(SR.Get(SRID.CannotChangeAfterSealed, "Condition")); } _sourceName = value; } } ////// Seal the condition so that it can no longer be modified /// internal void Seal(ValueLookupType type) { if (_sealed) { return; } _sealed = true; // Ensure valid condition if (_property != null && _binding != null) throw new InvalidOperationException(SR.Get(SRID.ConditionCannotUseBothPropertyAndBinding)); switch (type) { case ValueLookupType.Trigger: case ValueLookupType.PropertyTriggerResource: if (_property == null) { throw new InvalidOperationException(SR.Get(SRID.NullPropertyIllegal, "Property")); } if (!_property.IsValidValue(_value)) { throw new InvalidOperationException(SR.Get(SRID.InvalidPropertyValue, _value, _property.Name)); } break; case ValueLookupType.DataTrigger: case ValueLookupType.DataTriggerResource: if (_binding == null) { throw new InvalidOperationException(SR.Get(SRID.NullPropertyIllegal, "Binding")); } break; default: throw new InvalidOperationException(SR.Get(SRID.UnexpectedValueTypeForCondition, type)); } // Freeze the condition value StyleHelper.SealIfSealable(_value); } private bool _sealed = false; private DependencyProperty _property; private BindingBase _binding; private object _value = DependencyProperty.UnsetValue; private string _sourceName = null; } } // 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
- NavigationEventArgs.cs
- XhtmlCssHandler.cs
- GifBitmapEncoder.cs
- BamlVersionHeader.cs
- RegionData.cs
- HuffmanTree.cs
- MailDefinitionBodyFileNameEditor.cs
- HostedImpersonationContext.cs
- EllipseGeometry.cs
- IndependentlyAnimatedPropertyMetadata.cs
- CaseCqlBlock.cs
- EventLevel.cs
- EventDescriptor.cs
- DbXmlEnabledProviderManifest.cs
- DictionaryEntry.cs
- GeometryConverter.cs
- TimeSpanFormat.cs
- CapabilitiesAssignment.cs
- SignerInfo.cs
- MimeObjectFactory.cs
- PropertyPathConverter.cs
- SimpleWorkerRequest.cs
- QueryBranchOp.cs
- EqualityComparer.cs
- TargetControlTypeCache.cs
- ToolStripContentPanelRenderEventArgs.cs
- TaskExtensions.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- HttpCacheVary.cs
- WebPartTransformerAttribute.cs
- Panel.cs
- ToolStripSettings.cs
- SqlBulkCopyColumnMappingCollection.cs
- DataGridItem.cs
- BitStack.cs
- TextReader.cs
- TypeNameConverter.cs
- DomNameTable.cs
- EntityDesignerDataSourceView.cs
- ThreadSafeList.cs
- TrackingWorkflowEventArgs.cs
- ChangeTracker.cs
- ContextInformation.cs
- GraphicsPath.cs
- OdbcPermission.cs
- JsonMessageEncoderFactory.cs
- SemaphoreSecurity.cs
- ClientCultureInfo.cs
- PropertyFilterAttribute.cs
- AncestorChangedEventArgs.cs
- RangeValidator.cs
- NameValuePermission.cs
- SByte.cs
- RuntimeArgumentHandle.cs
- HtmlImageAdapter.cs
- DSASignatureDeformatter.cs
- DataColumnMapping.cs
- PropertyEmitterBase.cs
- Scanner.cs
- RC2.cs
- Win32Interop.cs
- CompositeScriptReference.cs
- Int32.cs
- HitTestDrawingContextWalker.cs
- Query.cs
- SocketException.cs
- PageParser.cs
- GridViewItemAutomationPeer.cs
- WizardStepCollectionEditor.cs
- Cursor.cs
- OdbcFactory.cs
- WindowsRichEdit.cs
- sortedlist.cs
- AttributeQuery.cs
- VirtualDirectoryMappingCollection.cs
- WorkflowApplicationIdleEventArgs.cs
- PropertyItemInternal.cs
- Permission.cs
- XmlSchemaInferenceException.cs
- TransactionException.cs
- RelationshipNavigation.cs
- PropertyRecord.cs
- hresults.cs
- HtmlInputPassword.cs
- CompoundFileStreamReference.cs
- AttributeProviderAttribute.cs
- ResourceDisplayNameAttribute.cs
- BuildManagerHost.cs
- ColumnTypeConverter.cs
- X509AsymmetricSecurityKey.cs
- formatter.cs
- Point3DCollectionConverter.cs
- ArglessEventHandlerProxy.cs
- DependencyPropertyKey.cs
- ConcurrentQueue.cs
- ContentValidator.cs
- Token.cs
- DataGridViewMethods.cs
- SortQueryOperator.cs
- AssociatedControlConverter.cs