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C# RuleValidation.DetermineExtensionMethods方法代碼示例

本文整理匯總了C#中System.Workflow.Activities.Rules.RuleValidation.DetermineExtensionMethods方法的典型用法代碼示例。如果您正苦於以下問題:C# RuleValidation.DetermineExtensionMethods方法的具體用法?C# RuleValidation.DetermineExtensionMethods怎麽用?C# RuleValidation.DetermineExtensionMethods使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在System.Workflow.Activities.Rules.RuleValidation的用法示例。


在下文中一共展示了RuleValidation.DetermineExtensionMethods方法的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的C#代碼示例。

示例1: Validate


//.........這裏部分代碼省略.........
                                error.UserData[RuleUserDataKeys.ErrorObject] = argExpr;
                                validation.AddError(error);

                                hasInvalidArgument = true;
                            }

                            // Validate the argument.
                            RuleExpressionInfo argExprInfo = RuleExpressionWalker.Validate(validation, argExpr, false);
                            if (argExprInfo == null)
                                hasInvalidArgument = true;
                            argExprs.Add(argExpr);
                        }
                    }
                }

                // Stop further validation if there was a problem with the target expression.
                if (targetType == null)
                    return null;

                // Stop further validation if there was a problem with any of the arguments.
                if (hasInvalidArgument)
                    return null;

                if (invokeExpr.Method.TargetObject is CodeTypeReferenceExpression)
                    bindingFlags |= BindingFlags.Static | BindingFlags.FlattenHierarchy;
                else
                    bindingFlags |= BindingFlags.Instance;
                if (validation.AllowInternalMembers(targetType))
                    bindingFlags |= BindingFlags.NonPublic;

                // Everything okay so far, try to resolve the method.
                methodInvokeInfo = validation.ResolveMethod(targetType, invokeExpr.Method.MethodName, bindingFlags, argExprs, out error);
                if ((methodInvokeInfo == null) && (invokeExpr.UserData.Contains(RuleUserDataKeys.QualifiedName)))
                {
                    // failed to resolve the method, but a fully qualified type name is around
                    // load the type, add it to the assemblies, and try again
                    string qualifiedName = invokeExpr.UserData[RuleUserDataKeys.QualifiedName] as string;
                    Type containingClassType = validation.ResolveType(qualifiedName);
                    if (containingClassType != null)
                    {
                        validation.DetermineExtensionMethods(containingClassType.Assembly);
                        methodInvokeInfo = validation.ResolveMethod(targetType, invokeExpr.Method.MethodName, bindingFlags, argExprs, out error);
                    }
                }
                if (methodInvokeInfo == null)
                {
                    error.UserData[RuleUserDataKeys.ErrorObject] = invokeExpr;
                    validation.Errors.Add(error);
                    return null;
                }
            }
            finally
            {
                validation.PopParentExpression();
            }


            MethodInfo mi = methodInvokeInfo.MethodInfo;

            if (mi.ReturnType == null)
            {
                // This can only happen with a design-time type.
                message = string.Format(CultureInfo.CurrentCulture, Messages.CouldNotDetermineMemberType, invokeExpr.Method.MethodName);
                error = new ValidationError(message, ErrorNumbers.Error_CouldNotDetermineMemberType);
                error.UserData[RuleUserDataKeys.ErrorObject] = invokeExpr;
                validation.Errors.Add(error);
                return null;
            }

            if (!validation.ValidateMemberAccess(invokeExpr.Method.TargetObject, targetType, mi, invokeExpr.Method.MethodName, invokeExpr))
                return null;

            // Validate any RuleAttributes, if present.
            object[] attrs = mi.GetCustomAttributes(typeof(RuleAttribute), true);
            if (attrs != null && attrs.Length > 0)
            {
                Stack<MemberInfo> methodStack = new Stack<MemberInfo>();
                methodStack.Push(mi);

                bool allAttributesValid = true;
                foreach (RuleAttribute ruleAttr in attrs)
                {
                    if (!ruleAttr.Validate(validation, mi, targetType, mi.GetParameters()))
                        allAttributesValid = false;
                }

                methodStack.Pop();

                if (!allAttributesValid)
                    return null;
            }

            // if this is an extension method, save the type information
            if (mi is ExtensionMethodInfo)
            {
                invokeExpr.UserData[RuleUserDataKeys.QualifiedName] = mi.DeclaringType.AssemblyQualifiedName;
            }

            return methodInvokeInfo;
        }
開發者ID:nlh774,項目名稱:DotNetReferenceSource,代碼行數:101,代碼來源:Expressions.cs

示例2: Validate


//.........這裏部分代碼省略.........
                     item.UserData["ErrorObject"] = newParent;
                     validation.Errors.Add(item);
                     expressionType = null;
                 }
                 else
                 {
                     if (expression3 is CodeTypeReferenceExpression)
                     {
                         item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CodeExpressionNotHandled, new object[] { expression3.GetType().FullName }), 0x548);
                         item.UserData["ErrorObject"] = expression3;
                         validation.AddError(item);
                         flag = true;
                     }
                     if (RuleExpressionWalker.Validate(validation, expression3, false) == null)
                     {
                         flag = true;
                     }
                     argumentExprs.Add(expression3);
                 }
             }
         }
         if (expressionType == null)
         {
             return null;
         }
         if (flag)
         {
             return null;
         }
         if (newParent.Method.TargetObject is CodeTypeReferenceExpression)
         {
             @public |= BindingFlags.FlattenHierarchy | BindingFlags.Static;
         }
         else
         {
             @public |= BindingFlags.Instance;
         }
         if (validation.AllowInternalMembers(expressionType))
         {
             @public |= BindingFlags.NonPublic;
         }
         info = validation.ResolveMethod(expressionType, newParent.Method.MethodName, @public, argumentExprs, out item);
         if ((info == null) && newParent.UserData.Contains("QualifiedName"))
         {
             string qualifiedName = newParent.UserData["QualifiedName"] as string;
             Type type2 = validation.ResolveType(qualifiedName);
             if (type2 != null)
             {
                 validation.DetermineExtensionMethods(type2.Assembly);
                 info = validation.ResolveMethod(expressionType, newParent.Method.MethodName, @public, argumentExprs, out item);
             }
         }
         if (info == null)
         {
             item.UserData["ErrorObject"] = newParent;
             validation.Errors.Add(item);
             return null;
         }
     }
     finally
     {
         validation.PopParentExpression();
     }
     MethodInfo methodInfo = info.MethodInfo;
     if (methodInfo.ReturnType == null)
     {
         item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CouldNotDetermineMemberType, new object[] { newParent.Method.MethodName }), 0x194);
         item.UserData["ErrorObject"] = newParent;
         validation.Errors.Add(item);
         return null;
     }
     if (!validation.ValidateMemberAccess(newParent.Method.TargetObject, expressionType, methodInfo, newParent.Method.MethodName, newParent))
     {
         return null;
     }
     object[] customAttributes = methodInfo.GetCustomAttributes(typeof(RuleAttribute), true);
     if ((customAttributes != null) && (customAttributes.Length > 0))
     {
         Stack<MemberInfo> stack = new Stack<MemberInfo>();
         stack.Push(methodInfo);
         bool flag2 = true;
         foreach (RuleAttribute attribute in customAttributes)
         {
             if (!attribute.Validate(validation, methodInfo, expressionType, methodInfo.GetParameters()))
             {
                 flag2 = false;
             }
         }
         stack.Pop();
         if (!flag2)
         {
             return null;
         }
     }
     if (methodInfo is ExtensionMethodInfo)
     {
         newParent.UserData["QualifiedName"] = methodInfo.DeclaringType.AssemblyQualifiedName;
     }
     return info;
 }
開發者ID:pritesh-mandowara-sp,項目名稱:DecompliedDotNetLibraries,代碼行數:101,代碼來源:MethodInvokeExpression.cs


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