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C# EntityType.RemoveNavigation方法代码示例

本文整理汇总了C#中EntityType.RemoveNavigation方法的典型用法代码示例。如果您正苦于以下问题:C# EntityType.RemoveNavigation方法的具体用法?C# EntityType.RemoveNavigation怎么用?C# EntityType.RemoveNavigation使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在EntityType的用法示例。


在下文中一共展示了EntityType.RemoveNavigation方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Can_add_and_remove_navigations

        public void Can_add_and_remove_navigations()
        {
            var customerType = new EntityType(typeof(Customer), new Model());
            var customerKey = customerType.GetOrAddKey(customerType.GetOrAddProperty(Customer.IdProperty));

            var orderType = new EntityType(typeof(Order), new Model());
            var foreignKeyProperty = orderType.GetOrAddProperty(Order.CustomerIdProperty);
            var customerForeignKey = orderType.GetOrAddForeignKey(foreignKeyProperty, customerKey);
            Assert.Null(orderType.RemoveNavigation(new Navigation("Customer", customerForeignKey, pointsToPrincipal: true)));

            var customerNavigation = orderType.AddNavigation("Customer", customerForeignKey, pointsToPrincipal: true);
            var ordersNavigation = customerType.AddNavigation("Orders", customerForeignKey, pointsToPrincipal: false);

            Assert.Equal("Customer", customerNavigation.Name);
            Assert.Same(orderType, customerNavigation.EntityType);
            Assert.Same(customerForeignKey, customerNavigation.ForeignKey);
            Assert.True(customerNavigation.PointsToPrincipal);
            Assert.False(customerNavigation.IsCollection());
            Assert.Same(customerType, customerNavigation.GetTargetType());
            Assert.Same(customerNavigation, customerForeignKey.GetNavigationToPrincipal());

            Assert.Equal("Orders", ordersNavigation.Name);
            Assert.Same(customerType, ordersNavigation.EntityType);
            Assert.Same(customerForeignKey, ordersNavigation.ForeignKey);
            Assert.False(ordersNavigation.PointsToPrincipal);
            Assert.True(ordersNavigation.IsCollection());
            Assert.Same(orderType, ordersNavigation.GetTargetType());
            Assert.Same(ordersNavigation, customerForeignKey.GetNavigationToDependent());

            Assert.Same(customerNavigation, orderType.Navigations.Single());
            Assert.Same(ordersNavigation, customerType.Navigations.Single());

            Assert.Same(customerNavigation, orderType.RemoveNavigation(customerNavigation));
            Assert.Null(orderType.RemoveNavigation(customerNavigation));
            Assert.Empty(orderType.Navigations);

            Assert.Same(ordersNavigation, customerType.RemoveNavigation(new Navigation("Orders", customerForeignKey, pointsToPrincipal: false)));
            Assert.Empty(customerType.Navigations);
        }
开发者ID:thegido,项目名称:EntityFramework,代码行数:39,代码来源:EntityTypeTest.cs

示例2: Navigation_back_pointer_is_fixed_up_as_navigation_is_added_and_removed

        public void Navigation_back_pointer_is_fixed_up_as_navigation_is_added_and_removed()
        {
            var entityType1 = new EntityType(typeof(Customer));
            entityType1.SetKey(entityType1.AddProperty(Customer.IdProperty));
            var entityType2 = new EntityType(typeof(Customer));

            var navigation
                = new Navigation(
                    new ForeignKey(
                        entityType1.GetKey(),
                        new[] { entityType1.AddProperty(Customer.IdProperty) }), "Nav", pointsToPrincipal: true);

            entityType1.AddNavigation(navigation);

            Assert.Same(entityType1, navigation.EntityType);

            entityType2.AddNavigation(navigation);

            Assert.Same(entityType2, navigation.EntityType);
            Assert.Empty(entityType1.Navigations);

            entityType2.RemoveNavigation(navigation);

            Assert.Empty(entityType2.Navigations);
            Assert.Null(navigation.EntityType);
        }
开发者ID:Nyaoso,项目名称:EntityFramework,代码行数:26,代码来源:EntityTypeTest.cs


注:本文中的EntityType.RemoveNavigation方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。