private static void FillCorrelationAliasAttrs(MemberInfo memberInfo, Hashtable correlationAliasAttrs, ValidationErrorCollection validationErrors)
 {
     foreach (object obj2 in memberInfo.GetCustomAttributes(typeof(CorrelationAliasAttribute), false))
     {
         CorrelationAliasAttribute attributeFromObject = Helpers.GetAttributeFromObject<CorrelationAliasAttribute>(obj2);
         if (string.IsNullOrEmpty(attributeFromObject.Name) || (attributeFromObject.Name.Trim().Length == 0))
         {
             ValidationError item = new ValidationError(SR.GetString(CultureInfo.CurrentCulture, "Error_CorrelationAttributeInvalid", new object[] { typeof(CorrelationAliasAttribute).Name, "Name", memberInfo.Name }), 0x150);
             item.UserData.Add(typeof(CorrelationAliasAttribute), memberInfo.Name);
             validationErrors.Add(item);
         }
         else if (string.IsNullOrEmpty(attributeFromObject.Path) || (attributeFromObject.Path.Trim().Length == 0))
         {
             ValidationError error2 = new ValidationError(SR.GetString(CultureInfo.CurrentCulture, "Error_CorrelationAttributeInvalid", new object[] { typeof(CorrelationAliasAttribute).Name, "Path", memberInfo.Name }), 0x150);
             error2.UserData.Add(typeof(CorrelationAliasAttribute), memberInfo.Name);
             validationErrors.Add(error2);
         }
         else if (correlationAliasAttrs.Contains(attributeFromObject.Name))
         {
             ValidationError error3 = new ValidationError(SR.GetString(CultureInfo.CurrentCulture, "Error_DuplicateCorrelationAttribute", new object[] { typeof(CorrelationAliasAttribute).Name, attributeFromObject.Name, memberInfo.Name }), 0x151);
             error3.UserData.Add(typeof(CorrelationAliasAttribute), memberInfo.Name);
             validationErrors.Add(error3);
         }
         else
         {
             correlationAliasAttrs.Add(attributeFromObject.Name, attributeFromObject);
         }
     }
 }

 internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
 {
     RuleExpressionInfo info;
     bool flag;
     CodeDirectionExpression expression2 = (CodeDirectionExpression) expression;
     if (isWritten)
     {
         ValidationError item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CannotWriteToExpression, new object[] { typeof(CodeDirectionExpression).ToString() }), 0x17a);
         item.UserData["ErrorObject"] = expression2;
         validation.Errors.Add(item);
         return null;
     }
     if (expression2.Expression == null)
     {
         ValidationError error2 = new ValidationError(Messages.NullDirectionTarget, 0x53d);
         error2.UserData["ErrorObject"] = expression2;
         validation.Errors.Add(error2);
         return null;
     }
     if (expression2.Expression is CodeTypeReferenceExpression)
     {
         ValidationError error = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CodeExpressionNotHandled, new object[] { expression2.Expression.GetType().FullName }), 0x548);
         error.UserData["ErrorObject"] = expression2.Expression;
         validation.AddError(error);
         return null;
     }
     if (expression2.Direction == FieldDirection.Ref)
     {
         flag = true;
         if (RuleExpressionWalker.Validate(validation, expression2.Expression, false) == null)
         {
             return null;
         }
         info = RuleExpressionWalker.Validate(validation, expression2.Expression, true);
     }
     else if (expression2.Direction == FieldDirection.Out)
     {
         flag = true;
         info = RuleExpressionWalker.Validate(validation, expression2.Expression, true);
     }
     else
     {
         flag = false;
         info = RuleExpressionWalker.Validate(validation, expression2.Expression, false);
     }
     if (info == null)
     {
         return null;
     }
     Type expressionType = info.ExpressionType;
     if (expressionType == null)
     {
         return null;
     }
     if (((expressionType != typeof(NullLiteral)) && flag) && !expressionType.IsByRef)
     {
         expressionType = expressionType.MakeByRefType();
     }
     return new RuleExpressionInfo(expressionType);
 }

 internal override bool Validate(RuleValidation validation)
 {
     bool flag = false;
     RuleExpressionInfo info = null;
     if (this.assignStatement.Left == null)
     {
         ValidationError item = new ValidationError(Messages.NullAssignLeft, 0x541);
         item.UserData["ErrorObject"] = this.assignStatement;
         validation.Errors.Add(item);
     }
     else
     {
         info = validation.ExpressionInfo(this.assignStatement.Left);
         if (info == null)
         {
             info = RuleExpressionWalker.Validate(validation, this.assignStatement.Left, true);
         }
     }
     RuleExpressionInfo info2 = null;
     if (this.assignStatement.Right == null)
     {
         ValidationError error2 = new ValidationError(Messages.NullAssignRight, 0x543);
         error2.UserData["ErrorObject"] = this.assignStatement;
         validation.Errors.Add(error2);
     }
     else
     {
         info2 = RuleExpressionWalker.Validate(validation, this.assignStatement.Right, false);
     }
     if ((info == null) || (info2 == null))
     {
         return flag;
     }
     Type expressionType = info2.ExpressionType;
     Type lhsType = info.ExpressionType;
     if (lhsType == typeof(NullLiteral))
     {
         ValidationError error3 = new ValidationError(Messages.NullAssignLeft, 0x542);
         error3.UserData["ErrorObject"] = this.assignStatement;
         validation.Errors.Add(error3);
         return false;
     }
     if (lhsType != expressionType)
     {
         ValidationError error = null;
         if (!RuleValidation.TypesAreAssignable(expressionType, lhsType, this.assignStatement.Right, out error))
         {
             if (error == null)
             {
                 error = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.AssignNotAllowed, new object[] { RuleDecompiler.DecompileType(expressionType), RuleDecompiler.DecompileType(lhsType) }), 0x545);
             }
             error.UserData["ErrorObject"] = this.assignStatement;
             validation.Errors.Add(error);
             return flag;
         }
     }
     return true;
 }

 private bool ValidateInvokeAttribute(RuleValidation validation, MemberInfo member, Type contextType, Stack<MemberInfo> methodStack)
 {
     ValidationError error;
     if (string.IsNullOrEmpty(this.methodInvoked))
     {
         error = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.AttributeMethodNotFound, new object[] { member.Name, base.GetType().Name, Messages.NullValue }), 0x56b, true);
         error.UserData["ErrorObject"] = this;
         validation.AddError(error);
         return false;
     }
     bool flag = true;
     MemberInfo[] infoArray = contextType.GetMember(this.methodInvoked, MemberTypes.Property | MemberTypes.Method, BindingFlags.FlattenHierarchy | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance);
     if ((infoArray == null) || (infoArray.Length == 0))
     {
         error = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.AttributeMethodNotFound, new object[] { member.Name, base.GetType().Name, this.methodInvoked }), 0x56b, true);
         error.UserData["ErrorObject"] = this;
         validation.AddError(error);
         return false;
     }
     for (int i = 0; i < infoArray.Length; i++)
     {
         MemberInfo item = infoArray[i];
         if (!methodStack.Contains(item))
         {
             methodStack.Push(item);
             object[] customAttributes = item.GetCustomAttributes(typeof(RuleAttribute), true);
             if ((customAttributes != null) && (customAttributes.Length != 0))
             {
                 foreach (RuleAttribute attribute in customAttributes)
                 {
                     RuleReadWriteAttribute attribute2 = attribute as RuleReadWriteAttribute;
                     if (attribute2 != null)
                     {
                         if (attribute2.Target == RuleAttributeTarget.Parameter)
                         {
                             error = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.InvokeAttrRefersToParameterAttribute, new object[] { item.Name }), 0x1a5, true);
                             error.UserData["ErrorObject"] = this;
                             validation.AddError(error);
                             flag = false;
                         }
                         else
                         {
                             attribute2.Validate(validation, item, contextType, null);
                         }
                     }
                     else
                     {
                         ((RuleInvokeAttribute) attribute).ValidateInvokeAttribute(validation, item, contextType, methodStack);
                     }
                 }
             }
             methodStack.Pop();
         }
     }
     return flag;
 }

 internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
 {
     if (isWritten)
     {
         ValidationError item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CannotWriteToExpression, new object[] { typeof(CodeThisReferenceExpression).ToString() }), 0x17a);
         item.UserData["ErrorObject"] = expression;
         validation.Errors.Add(item);
         return null;
     }
     return new RuleExpressionInfo(validation.ThisType);
 }

 internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
 {
     if (isWritten)
     {
         ValidationError item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CannotWriteToExpression, new object[] { typeof(CodePrimitiveExpression).ToString() }), 0x17a);
         item.UserData["ErrorObject"] = expression;
         validation.Errors.Add(item);
         return null;
     }
     CodePrimitiveExpression expression2 = (CodePrimitiveExpression) expression;
     return new RuleExpressionInfo((expression2.Value != null) ? expression2.Value.GetType() : typeof(NullLiteral));
 }

 public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
 {
     ValidationErrorCollection errors = base.Validate(manager, obj);
     MethodBind bind = obj as MethodBind;
     if (bind == null)
     {
         throw new ArgumentException(SR.GetString("Error_UnexpectedArgumentType", new object[] { typeof(MethodBind).FullName }), "obj");
     }
     PropertyValidationContext validationContext = manager.Context[typeof(PropertyValidationContext)] as PropertyValidationContext;
     if (validationContext == null)
     {
         throw new InvalidOperationException(SR.GetString("Error_ContextStackItemMissing", new object[] { typeof(BindValidationContext).Name }));
     }
     Activity activity = manager.Context[typeof(Activity)] as Activity;
     if (activity == null)
     {
         throw new InvalidOperationException(SR.GetString("Error_ContextStackItemMissing", new object[] { typeof(Activity).Name }));
     }
     ValidationError item = null;
     if (string.IsNullOrEmpty(bind.Name))
     {
         item = new ValidationError(SR.GetString("Error_PropertyNotSet", new object[] { "Name" }), 0x116) {
             PropertyName = base.GetFullPropertyName(manager) + ".Name"
         };
     }
     else
     {
         BindValidationContext context2 = manager.Context[typeof(BindValidationContext)] as BindValidationContext;
         if (context2 == null)
         {
             Type baseType = BindHelpers.GetBaseType(manager, validationContext);
             if (baseType != null)
             {
                 AccessTypes accessType = BindHelpers.GetAccessType(manager, validationContext);
                 context2 = new BindValidationContext(baseType, accessType);
             }
         }
         if (context2 != null)
         {
             Type targetType = context2.TargetType;
             if (item == null)
             {
                 errors.AddRange(this.ValidateMethod(manager, activity, bind, new BindValidationContext(targetType, context2.Access)));
             }
         }
     }
     if (item != null)
     {
         errors.Add(item);
     }
     return errors;
 }

        internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
        {
            if (isWritten)
            {
                string message = string.Format(CultureInfo.CurrentCulture, Messages.CannotWriteToExpression, typeof(CodeThisReferenceExpression).ToString());
                ValidationError error = new ValidationError(message, ErrorNumbers.Error_InvalidAssignTarget);
                error.UserData[RuleUserDataKeys.ErrorObject] = expression;
                validation.Errors.Add(error);
                return null;
            }

            return new RuleExpressionInfo(validation.ThisType);
        }

        public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
        {
            ValidationErrorCollection validationErrors = base.Validate(manager, obj);

            FieldBind bind = obj as FieldBind;
            if (bind == null)
                throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(FieldBind).FullName), "obj");

            PropertyValidationContext validationContext = manager.Context[typeof(PropertyValidationContext)] as PropertyValidationContext;
            if (validationContext == null)
                throw new InvalidOperationException(SR.GetString(SR.Error_ContextStackItemMissing, typeof(BindValidationContext).Name));

            Activity activity = manager.Context[typeof(Activity)] as Activity;
            if (activity == null)
                throw new InvalidOperationException(SR.GetString(SR.Error_ContextStackItemMissing, typeof(Activity).Name));

            ValidationError error = null;
            if (string.IsNullOrEmpty(bind.Name))
            {
                error = new ValidationError(SR.GetString(SR.Error_PropertyNotSet, "Name"), ErrorNumbers.Error_PropertyNotSet);
                error.PropertyName = GetFullPropertyName(manager) + ".Name";
            }
            else
            {
                BindValidationContext validationBindContext = manager.Context[typeof(BindValidationContext)] as BindValidationContext;
                if (validationBindContext == null)
                {
                    Type baseType = BindHelpers.GetBaseType(manager, validationContext);
                    if (baseType != null)
                    {
                        AccessTypes accessType = BindHelpers.GetAccessType(manager, validationContext);
                        validationBindContext = new BindValidationContext(baseType, accessType);
                    }
                    //else
                    //{
                    //    error = new ValidationError(SR.GetString(SR.Error_BindBaseTypeNotSpecified, validationContext.PropertyName), ErrorNumbers.Error_BindBaseTypeNotSpecified);
                    //    error.PropertyName = GetFullPropertyName(manager) + ".Name";
                    //}
                }
                if (validationBindContext != null)
                {
                    Type targetType = validationBindContext.TargetType;
                    if (error == null)
                        validationErrors.AddRange(this.ValidateField(manager, activity, bind, new BindValidationContext(targetType, validationBindContext.Access)));
                }
            }
            if (error != null)
                validationErrors.Add(error);

            return validationErrors;
        }

        public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
        {
            if (manager == null)
                throw new ArgumentNullException("manager");

            Activity activity = obj as Activity;
            if (activity == null)
                throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(Activity).FullName), "obj");

            if (manager.Context == null)
                throw new ArgumentException("manager", SR.GetString(SR.Error_MissingContextProperty));

            manager.Context.Push(activity);

            ValidationErrorCollection errors = new ValidationErrorCollection();
            errors.AddRange(base.Validate(manager, obj));

            if (activity.Parent == null)
            {
                errors.AddRange(ValidationHelpers.ValidateUniqueIdentifiers(activity));

                if (activity.Enabled == false)
                {
                    ValidationError error = new ValidationError(SR.GetString(SR.Error_RootIsNotEnabled), ErrorNumbers.Error_RootIsNotEnabled);
                    error.PropertyName = "Enabled";
                    errors.Add(error);
                }
            }

            // validate ID property, only if it is not root activity
            Activity rootActivity = Helpers.GetRootActivity(activity);
            if (activity != rootActivity)
            {
                ValidationError identifierError = ValidationHelpers.ValidateNameProperty("Name", manager, activity.Name);
                if (identifierError != null)
                    errors.Add(identifierError);
            }

            try
            {
                errors.AddRange(ValidateProperties(manager, obj));
            }
            finally
            {
                System.Diagnostics.Debug.Assert(manager.Context.Current == activity, "Unwinding contextStack: the item that is about to be popped is not the one we pushed.");
                manager.Context.Pop();
            }

            return errors;
        }

        public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
        {
            ValidationErrorCollection errors = base.Validate(manager, obj);

             MsmqSendActivity act = (MsmqSendActivity)obj;

             if ( !act.IsBindingSet(MsmqSendActivity.QueueProperty) )
             {
            if ( act.GetValue(MsmqSendActivity.QueueProperty) == null )
            {
               errors.Add(ValidationError.GetNotSetValidationError("Queue"));
            }
             }
             if ( !act.IsBindingSet(MsmqSendActivity.MessageToSendProperty) )
             {
            if ( act.GetValue(MsmqSendActivity.MessageToSendProperty) == null )
            {
               errors.Add(ValidationError.GetNotSetValidationError("MessageToSend"));
            }
             }

             // if the queue is transactional, one of our parents
             // must be a TransactionScope
             if ( act.IsTransactionalQueue )
             {
            bool isInTransaction = false;
            Activity parent = act.Parent;

            while ( parent != null )
            {
               if ( parent is TransactionScopeActivity )
               {
                  isInTransaction = true;
                  break;
               }
               parent = parent.Parent;
            }

            if ( !isInTransaction )
            {
               ValidationError error =
                  new ValidationError(Resources.Send_MustBeInTransaction, 9001);
               errors.Add(error);
            }
             }

             return errors;
        }

 public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
 {
     if (manager == null)
     {
         throw new ArgumentNullException("manager");
     }
     Activity context = obj as Activity;
     if (context == null)
     {
         throw new ArgumentException(SR.GetString("Error_UnexpectedArgumentType", new object[] { typeof(Activity).FullName }), "obj");
     }
     if (manager.Context == null)
     {
         throw new ArgumentException("manager", SR.GetString("Error_MissingContextProperty"));
     }
     manager.Context.Push(context);
     ValidationErrorCollection errors = new ValidationErrorCollection();
     errors.AddRange(base.Validate(manager, obj));
     if (context.Parent == null)
     {
         errors.AddRange(ValidationHelpers.ValidateUniqueIdentifiers(context));
         if (!context.Enabled)
         {
             ValidationError item = new ValidationError(SR.GetString("Error_RootIsNotEnabled"), 0x628) {
                 PropertyName = "Enabled"
             };
             errors.Add(item);
         }
     }
     Activity rootActivity = Helpers.GetRootActivity(context);
     if (context != rootActivity)
     {
         ValidationError error2 = ValidationHelpers.ValidateNameProperty("Name", manager, context.Name);
         if (error2 != null)
         {
             errors.Add(error2);
         }
     }
     try
     {
         errors.AddRange(this.ValidateProperties(manager, obj));
     }
     finally
     {
         manager.Context.Pop();
     }
     return errors;
 }

 internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
 {
     CodeTypeReferenceExpression expression2 = (CodeTypeReferenceExpression) expression;
     if (expression2.Type == null)
     {
         ValidationError item = new ValidationError(Messages.NullTypeType, 0x53d);
         item.UserData["ErrorObject"] = expression2;
         validation.Errors.Add(item);
         return null;
     }
     if (isWritten)
     {
         ValidationError error2 = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CannotWriteToExpression, new object[] { typeof(CodeTypeReferenceExpression).ToString() }), 0x17a);
         error2.UserData["ErrorObject"] = expression2;
         validation.Errors.Add(error2);
         return null;
     }
     return new RuleExpressionInfo(validation.ResolveType(expression2.Type));
 }

 public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
 {
     ValidationErrorCollection errors = base.Validate(manager, obj);
     FaultHandlerActivity activity = obj as FaultHandlerActivity;
     if (activity == null)
     {
         throw new ArgumentException(SR.GetString("Error_UnexpectedArgumentType", new object[] { typeof(FaultHandlerActivity).FullName }), "obj");
     }
     if (!(activity.Parent is FaultHandlersActivity))
     {
         errors.Add(new ValidationError(SR.GetString("Error_FaultHandlerActivityParentNotFaultHandlersActivity"), 0x519));
     }
     if (!(manager.GetService(typeof(ITypeProvider)) is ITypeProvider))
     {
         throw new InvalidOperationException(SR.GetString("General_MissingService", new object[] { typeof(ITypeProvider).FullName }));
     }
     ValidationError item = null;
     if (activity.FaultType == null)
     {
         item = new ValidationError(SR.GetString("Error_TypePropertyInvalid", new object[] { "FaultType" }), 0x116) {
             PropertyName = "FaultType"
         };
         errors.Add(item);
     }
     else if (!TypeProvider.IsAssignable(typeof(Exception), activity.FaultType))
     {
         item = new ValidationError(SR.GetString("Error_TypeTypeMismatch", new object[] { "FaultType", typeof(Exception).FullName }), 0x51a) {
             PropertyName = "FaultType"
         };
         errors.Add(item);
     }
     if (activity.EnabledActivities.Count == 0)
     {
         errors.Add(new ValidationError(SR.GetString("Warning_EmptyBehaviourActivity", new object[] { typeof(FaultHandlerActivity).FullName, activity.QualifiedName }), 0x1a3, true));
     }
     if (activity.AlternateFlowActivities.Count > 0)
     {
         errors.Add(new ValidationError(SR.GetString("Error_ModelingConstructsCanNotContainModelingConstructs"), 0x61f));
     }
     return errors;
 }

        internal static ValidationError ValidateIdentifier(string propName, IServiceProvider context, string identifier)
        {
            if (context == null)
                throw new ArgumentNullException("context");

            ValidationError error = null;
            if (identifier == null || identifier.Length == 0)
                error = new ValidationError(SR.GetString(SR.Error_PropertyNotSet, propName), ErrorNumbers.Error_PropertyNotSet);
            else
            {
                try
                {
                    ValidationHelpers.ValidateIdentifier(context, identifier);
                }
                catch (Exception e)
                {
                    error = new ValidationError(SR.GetString(SR.Error_InvalidIdentifier, propName, e.Message), ErrorNumbers.Error_InvalidIdentifier);
                }
            }
            if (error != null)
                error.PropertyName = propName;
            return error;
        }

 public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
 {
     ValidationErrorCollection errors = base.Validate(manager, obj);
     CompensateActivity compensate = obj as CompensateActivity;
     if (compensate == null)
     {
         throw new ArgumentException(SR.GetString("Error_UnexpectedArgumentType", new object[] { typeof(CompensateActivity).FullName }), "obj");
     }
     CompositeActivity parent = compensate.Parent;
     while (parent != null)
     {
         if (((parent is CompensationHandlerActivity) || (parent is FaultHandlerActivity)) || (parent is CancellationHandlerActivity))
         {
             break;
         }
         parent = parent.Parent;
     }
     if (parent == null)
     {
         errors.Add(new ValidationError(SR.GetString("Error_CompensateBadNesting"), 0x509));
     }
     ValidationError item = null;
     StringCollection compensatableTargets = CompensateActivity.GetCompensatableTargets(compensate);
     if (string.IsNullOrEmpty(compensate.TargetActivityName))
     {
         item = ValidationError.GetNotSetValidationError("TargetActivityName");
     }
     else if (!compensatableTargets.Contains(compensate.TargetActivityName))
     {
         item = new ValidationError(SR.GetString("Error_CompensateBadTargetTX", new object[] { "TargetActivityName", compensate.TargetActivityName, compensate.QualifiedName }), 0x563, false, "TargetActivityName");
     }
     if (item != null)
     {
         errors.Add(item);
     }
     return errors;
 }

        internal static ValidationError ValidateNameProperty(string propName, IServiceProvider context, string identifier)
        {
            if (context == null)
                throw new ArgumentNullException("context");

            ValidationError error = null;
            if (identifier == null || identifier.Length == 0)
                error = new ValidationError(SR.GetString(SR.Error_PropertyNotSet, propName), ErrorNumbers.Error_PropertyNotSet);
            else
            {
                SupportedLanguages language = CompilerHelpers.GetSupportedLanguage(context);
                CodeDomProvider provider = CompilerHelpers.GetCodeDomProvider(language);

                if (language == SupportedLanguages.CSharp && identifier.StartsWith("@", StringComparison.Ordinal) ||
                    language == SupportedLanguages.VB && identifier.StartsWith("[", StringComparison.Ordinal) && identifier.EndsWith("]", StringComparison.Ordinal) ||
                    !provider.IsValidIdentifier(provider.CreateEscapedIdentifier(identifier)))
                {
                    error = new ValidationError(SR.GetString(SR.Error_InvalidIdentifier, propName, SR.GetString(SR.Error_InvalidLanguageIdentifier, identifier)), ErrorNumbers.Error_InvalidIdentifier);
                }
            }
            if (error != null)
                error.PropertyName = propName;
            return error;
        }

        internal override bool Validate(RuleValidation validation)
        {
            bool success = false;

            if (exprStatement.Expression == null)
            {
                ValidationError error = new ValidationError(Messages.NullInvokeStatementExpression, ErrorNumbers.Error_ParameterNotSet);
                error.UserData[RuleUserDataKeys.ErrorObject] = exprStatement;
                validation.Errors.Add(error);
            }
            else if (exprStatement.Expression is CodeMethodInvokeExpression)
            {
                RuleExpressionInfo exprInfo = RuleExpressionWalker.Validate(validation, exprStatement.Expression, false);
                success = (exprInfo != null);
            }
            else
            {
                ValidationError error = new ValidationError(Messages.InvokeNotHandled, ErrorNumbers.Error_CodeExpressionNotHandled);
                error.UserData[RuleUserDataKeys.ErrorObject] = exprStatement;
                validation.Errors.Add(error);
            }

            return success;
        }

 public override ValidationErrorCollection Validate(ValidationManager manager, object obj)
 {
     ValidationErrorCollection errors = base.Validate(manager, obj);
     WebServiceOutputActivity activity = obj as WebServiceOutputActivity;
     if (activity == null)
     {
         throw new ArgumentException(SR.GetString("Error_UnexpectedArgumentType", new object[] { typeof(WebServiceOutputActivity).FullName }), "obj");
     }
     if (!Helpers.IsActivityLocked(activity))
     {
         List<ParameterInfo> list;
         List<ParameterInfo> list2;
         WebServiceInputActivity activity2 = null;
         if (string.IsNullOrEmpty(activity.InputActivityName))
         {
             errors.Add(ValidationError.GetNotSetValidationError("InputActivityName"));
             return errors;
         }
         ITypeProvider service = (ITypeProvider) manager.GetService(typeof(ITypeProvider));
         if (service == null)
         {
             throw new InvalidOperationException(SR.GetString("General_MissingService", new object[] { typeof(ITypeProvider).FullName }));
         }
         bool flag = false;
         foreach (Activity activity3 in WebServiceActivityHelpers.GetPreceedingActivities(activity))
         {
             if (((activity3 is WebServiceOutputActivity) && (string.Compare(((WebServiceOutputActivity) activity3).InputActivityName, activity.InputActivityName, StringComparison.Ordinal) == 0)) || ((activity3 is WebServiceFaultActivity) && (string.Compare(((WebServiceFaultActivity) activity3).InputActivityName, activity.InputActivityName, StringComparison.Ordinal) == 0)))
             {
                 if (activity3 is WebServiceOutputActivity)
                 {
                     errors.Add(new ValidationError(SR.GetString("Error_DuplicateWebServiceResponseFound", new object[] { activity3.QualifiedName, activity.InputActivityName }), 0x56a));
                     return errors;
                 }
                 errors.Add(new ValidationError(SR.GetString("Error_DuplicateWebServiceFaultFound", new object[] { activity3.QualifiedName, activity.InputActivityName }), 0x574));
                 return errors;
             }
         }
         foreach (Activity activity4 in WebServiceActivityHelpers.GetPreceedingActivities(activity))
         {
             if (string.Compare(activity4.QualifiedName, activity.InputActivityName, StringComparison.Ordinal) == 0)
             {
                 if (activity4 is WebServiceInputActivity)
                 {
                     activity2 = activity4 as WebServiceInputActivity;
                     flag = true;
                     break;
                 }
                 flag = false;
                 errors.Add(new ValidationError(SR.GetString("Error_WebServiceReceiveNotValid", new object[] { activity.InputActivityName }), 0x564));
                 return errors;
             }
         }
         if (!flag)
         {
             errors.Add(new ValidationError(SR.GetString("Error_WebServiceReceiveNotFound", new object[] { activity.InputActivityName }), 0x55e));
             return errors;
         }
         Type interfaceType = null;
         if (activity2.InterfaceType != null)
         {
             interfaceType = service.GetType(activity2.InterfaceType.AssemblyQualifiedName);
         }
         if (interfaceType == null)
         {
             errors.Add(new ValidationError(SR.GetString("Error_WebServiceReceiveNotConfigured", new object[] { activity2.Name }), 0x566));
             return errors;
         }
         if (string.IsNullOrEmpty(activity2.MethodName))
         {
             errors.Add(new ValidationError(SR.GetString("Error_WebServiceReceiveNotConfigured", new object[] { activity2.Name }), 0x566));
             return errors;
         }
         MethodInfo interfaceMethod = Helpers.GetInterfaceMethod(interfaceType, activity2.MethodName);
         if (interfaceMethod == null)
         {
             errors.Add(new ValidationError(SR.GetString("Error_WebServiceReceiveNotConfigured", new object[] { activity2.Name }), 0x566));
             return errors;
         }
         ValidationErrorCollection errors2 = WebServiceActivityHelpers.ValidateParameterTypes(interfaceMethod);
         if (errors2.Count > 0)
         {
             foreach (ValidationError error in errors2)
             {
                 error.PropertyName = "InputActivityName";
             }
             errors.AddRange(errors2);
             return errors;
         }
         WebServiceActivityHelpers.GetParameterInfo(interfaceMethod, out list, out list2);
         if (list2.Count == 0)
         {
             errors.Add(new ValidationError(SR.GetString("Error_WebServiceResponseNotNeeded"), 0x565));
             return errors;
         }
         foreach (ParameterInfo info2 in list2)
         {
             string name = info2.Name;
             Type type2 = info2.ParameterType.IsByRef ? info2.ParameterType.GetElementType() : info2.ParameterType;
             if (info2.Position == -1)
             {
//.........这里部分代码省略.........

 internal static ValidationError ValidateIdentifier(string propName, IServiceProvider context, string identifier)
 {
     if (context == null)
     {
         throw new ArgumentNullException("context");
     }
     ValidationError error = null;
     if ((identifier == null) || (identifier.Length == 0))
     {
         error = new ValidationError(SR.GetString("Error_PropertyNotSet", new object[] { propName }), 0x116);
     }
     else
     {
         try
         {
             ValidateIdentifier(context, identifier);
         }
         catch (Exception exception)
         {
             error = new ValidationError(SR.GetString("Error_InvalidIdentifier", new object[] { propName, exception.Message }), 0x119);
         }
     }
     if (error != null)
     {
         error.PropertyName = propName;
     }
     return error;
 }