Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Documents / ValidationHelper.cs / 1305600 / ValidationHelper.cs
//---------------------------------------------------------------------------- // // File: ValidationHelper.cs // // Copyright (C) Microsoft Corporation. All rights reserved. // // Description: Helpers for TOM parameter validation. // //--------------------------------------------------------------------------- namespace System.Windows.Documents { using MS.Internal; // Invariant.Assert using System.ComponentModel; using System.Windows; using System.Windows.Media; internal static class ValidationHelper { //----------------------------------------------------- // // Internal Methods // //----------------------------------------------------- #region Internal Methods // Verifies a TextPointer is non-null and // is associated with a given TextContainer. // // Throws an appropriate exception if a test fails. internal static void VerifyPosition(ITextContainer tree, ITextPointer position) { VerifyPosition(tree, position, "position"); } // Verifies a TextPointer is non-null and is associated with a given TextContainer. // // Throws an appropriate exception if a test fails. internal static void VerifyPosition(ITextContainer container, ITextPointer position, string paramName) { if (position == null) { throw new ArgumentNullException(paramName); } if (position.TextContainer != container) { throw new ArgumentException(SR.Get(SRID.NotInAssociatedTree, paramName)); } } // Verifies two positions are safe to use as a logical text span. // // Throws ArgumentNullException if startPosition == null || endPosition == null // ArgumentException if startPosition.TextContainer != endPosition.TextContainer or // startPosition > endPosition internal static void VerifyPositionPair(ITextPointer startPosition, ITextPointer endPosition) { if (startPosition == null) { throw new ArgumentNullException("startPosition"); } if (endPosition == null) { throw new ArgumentNullException("endPosition"); } if (startPosition.TextContainer != endPosition.TextContainer) { throw new ArgumentException(SR.Get(SRID.InDifferentTextContainers, "startPosition", "endPosition")); } if (startPosition.CompareTo(endPosition) > 0) { throw new ArgumentException(SR.Get(SRID.BadTextPositionOrder, "startPosition", "endPosition")); } } // Throws an ArgumentException if direction is not a valid enum. internal static void VerifyDirection(LogicalDirection direction, string argumentName) { if (direction != LogicalDirection.Forward && direction != LogicalDirection.Backward) { throw new InvalidEnumArgumentException(argumentName, (int)direction, typeof(LogicalDirection)); } } // Throws an ArgumentException if edge is not a valid enum. internal static void VerifyElementEdge(ElementEdge edge, string param) { if (edge != ElementEdge.BeforeStart && edge != ElementEdge.AfterStart && edge != ElementEdge.BeforeEnd && edge != ElementEdge.AfterEnd) { throw new InvalidEnumArgumentException(param, (int)edge, typeof(ElementEdge)); } } // ............................................................... // // TextSchema Validation // // ............................................................... // Checks whether it is valid to insert the child object at passed position. internal static void ValidateChild(TextPointer position, object child, string paramName) { Invariant.Assert(position != null); if (child == null) { throw new ArgumentNullException(paramName); } if (!TextSchema.IsValidChild(/*position:*/position, /*childType:*/child.GetType())) { throw new ArgumentException(SR.Get(SRID.TextSchema_ChildTypeIsInvalid, position.Parent.GetType().Name, child.GetType().Name)); } // The new child should not be currently in other text tree if (child is TextElement) { if (((TextElement)child).Parent != null) { throw new ArgumentException(SR.Get(SRID.TextSchema_TheChildElementBelongsToAnotherTreeAlready, child.GetType().Name)); } } else { Invariant.Assert(child is UIElement); // Cannot call UIElement.Parent across assembly boundary. So skip this part of validation. This condition will be checked elsewhere anyway. //if (((UIElement)child).Parent != null) //{ // throw new ArgumentException(SR.Get(SRID.TextSchema_TheChildElementBelongsToAnotherTreeAlready, child.GetType().Name)); //} } } #endregion Internal methods } } // 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
- _HTTPDateParse.cs
- LostFocusEventManager.cs
- _ReceiveMessageOverlappedAsyncResult.cs
- DataGridBoolColumn.cs
- InfoCardTrace.cs
- RenderingBiasValidation.cs
- AssemblyCache.cs
- TypeDescriptorFilterService.cs
- UxThemeWrapper.cs
- TraceHelpers.cs
- DispatchOperation.cs
- RequestNavigateEventArgs.cs
- ListViewTableRow.cs
- LogicalExpr.cs
- ImpersonationContext.cs
- ExpandedWrapper.cs
- KeyManager.cs
- NameTable.cs
- CustomAttribute.cs
- ChannelHandler.cs
- XPathNodeInfoAtom.cs
- Drawing.cs
- CommonXSendMessage.cs
- StopStoryboard.cs
- TranslateTransform3D.cs
- XmlQueryType.cs
- TypeBuilderInstantiation.cs
- FrameAutomationPeer.cs
- StackOverflowException.cs
- ApplicationManager.cs
- ProviderCollection.cs
- PointLight.cs
- LicenseContext.cs
- AnnotationHelper.cs
- LinkGrep.cs
- SizeConverter.cs
- OleServicesContext.cs
- CaseStatement.cs
- PriorityBinding.cs
- MultitargetUtil.cs
- XmlNullResolver.cs
- WebException.cs
- WebWorkflowRole.cs
- DebugView.cs
- DecimalConstantAttribute.cs
- PagePropertiesChangingEventArgs.cs
- HostingEnvironment.cs
- SelectorItemAutomationPeer.cs
- XsltConvert.cs
- DBConcurrencyException.cs
- SamlAssertionKeyIdentifierClause.cs
- Activity.cs
- CriticalFinalizerObject.cs
- SqlTransaction.cs
- TextBoxAutoCompleteSourceConverter.cs
- RemotingAttributes.cs
- DataGrid.cs
- ValidationSummary.cs
- AtlasWeb.Designer.cs
- HandoffBehavior.cs
- TemplatePropertyEntry.cs
- _TransmitFileOverlappedAsyncResult.cs
- _AuthenticationState.cs
- Trace.cs
- FrameworkReadOnlyPropertyMetadata.cs
- LassoSelectionBehavior.cs
- TypeElement.cs
- ProviderSettingsCollection.cs
- ClearTypeHintValidation.cs
- EntityWithChangeTrackerStrategy.cs
- MenuItem.cs
- MaterialGroup.cs
- MemberMemberBinding.cs
- VirtualPathUtility.cs
- ParameterElementCollection.cs
- SynchronizedDispatch.cs
- TableCellAutomationPeer.cs
- WebBrowser.cs
- XmlSerializerAssemblyAttribute.cs
- OdbcException.cs
- HttpWriter.cs
- RtType.cs
- FontEmbeddingManager.cs
- MenuBase.cs
- DataBindingExpressionBuilder.cs
- PropertyDescriptor.cs
- HttpProtocolReflector.cs
- HtmlControlPersistable.cs
- SqlDependencyListener.cs
- PathSegmentCollection.cs
- InputScope.cs
- ScriptControlDescriptor.cs
- HybridDictionary.cs
- ScriptBehaviorDescriptor.cs
- BorderGapMaskConverter.cs
- BitmapScalingModeValidation.cs
- InfiniteTimeSpanConverter.cs
- RtfControls.cs
- EncoderNLS.cs
- RectangleHotSpot.cs