本文整理汇总了C#中EntityType.GetForeignKeys方法的典型用法代码示例。如果您正苦于以下问题：C# EntityType.GetForeignKeys方法的具体用法？C# EntityType.GetForeignKeys怎么用？C# EntityType.GetForeignKeys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类EntityType的用法示例。
在下文中一共展示了EntityType.GetForeignKeys方法的4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: ApplyOnRelatedEntityTypes
private void ApplyOnRelatedEntityTypes(InternalModelBuilder modelBuilder, EntityType entityType)
{
var relatedEntityTypes = entityType.GetReferencingForeignKeys().Select(fk => fk.DeclaringEntityType)
.Concat(entityType.GetForeignKeys().Select(fk => fk.PrincipalEntityType))
.Distinct()
.ToList();
foreach (var relatedEntityType in relatedEntityTypes)
{
var relatedEntityTypeBuilder = modelBuilder.Entity(relatedEntityType.Name, ConfigurationSource.Convention);
Apply(relatedEntityTypeBuilder);
}
}示例2: Can_get_or_add_a_foreign_key
public void Can_get_or_add_a_foreign_key()
{
var customerType = new EntityType(typeof(Customer), new Model());
var idProperty = customerType.GetOrAddProperty(Customer.IdProperty);
var customerKey = customerType.GetOrAddKey(idProperty);
var orderType = new EntityType(typeof(Order), new Model());
var customerFk1 = orderType.GetOrAddProperty(Order.CustomerIdProperty);
var customerFk2 = orderType.GetOrAddProperty("IdAgain", typeof(int), shadowProperty: true);
var fk1 = orderType.AddForeignKey(customerFk1, customerKey);
var fk2 = orderType.GetOrAddForeignKey(customerFk2, customerKey);
Assert.NotNull(fk2);
Assert.NotEqual(fk1, fk2);
Assert.Same(fk2, orderType.GetForeignKey(customerFk2));
Assert.Same(fk2, orderType.FindForeignKey(customerFk2));
Assert.Equal(new[] { fk1, fk2 }, orderType.GetForeignKeys().ToArray());
Assert.Same(fk2, orderType.GetOrAddForeignKey(customerFk2, customerKey));
Assert.Equal(new[] { fk1, fk2 }, orderType.GetForeignKeys().ToArray());
}示例3: Can_remove_foreign_keys
public void Can_remove_foreign_keys()
{
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 customerFk1 = orderType.GetOrAddProperty(Order.CustomerIdProperty);
var customerFk2 = orderType.GetOrAddProperty("IdAgain", typeof(int), shadowProperty: true);
Assert.Equal(
Strings.ForeignKeyNotFound("{'" + Order.CustomerIdProperty.Name + "'}", typeof(Order).FullName),
Assert.Throws<ModelItemNotFoundException>(() => orderType.GetForeignKey(customerFk1)).Message);
Assert.Null(orderType.RemoveForeignKey(new ForeignKey(new[] { customerFk2 }, customerKey)));
var fk1 = orderType.AddForeignKey(customerFk1, customerKey);
var fk2 = orderType.AddForeignKey(customerFk2, customerKey);
Assert.Equal(new[] { fk1, fk2 }, orderType.GetForeignKeys().ToArray());
Assert.Same(fk1, orderType.RemoveForeignKey(fk1));
Assert.Null(orderType.RemoveForeignKey(fk1));
Assert.Equal(
Strings.ForeignKeyNotFound("{'" + Order.CustomerIdProperty.Name + "'}", typeof(Order).FullName),
Assert.Throws<ModelItemNotFoundException>(() => orderType.GetForeignKey(customerFk1)).Message);
Assert.Equal(new[] { fk2 }, orderType.GetForeignKeys().ToArray());
Assert.Same(fk2, orderType.RemoveForeignKey(new ForeignKey(new[] { customerFk2 }, customerKey)));
Assert.Empty(orderType.GetForeignKeys());
}示例4: Foreign_keys_are_ordered_by_property_count_then_property_names
public void Foreign_keys_are_ordered_by_property_count_then_property_names()
{
var customerType = new EntityType(typeof(Customer), new Model());
var idProperty = customerType.GetOrAddProperty(Customer.IdProperty);
var nameProperty = customerType.GetOrAddProperty(Customer.NameProperty);
var customerKey = customerType.GetOrAddKey(idProperty);
var otherCustomerKey = customerType.GetOrAddKey(new[] { idProperty, nameProperty });
var orderType = new EntityType(typeof(Order), new Model());
var customerFk1 = orderType.GetOrAddProperty(Order.CustomerIdProperty);
var customerFk2 = orderType.GetOrAddProperty("IdAgain", typeof(int), shadowProperty: true);
var customerFk3A = orderType.GetOrAddProperty("OtherId1", typeof(int), shadowProperty: true);
var customerFk3B = orderType.GetOrAddProperty("OtherId2", typeof(string), shadowProperty: true);
var customerFk4B = orderType.GetOrAddProperty("OtherId3", typeof(string), shadowProperty: true);
var fk2 = orderType.AddForeignKey(customerFk2, customerKey);
var fk4 = orderType.AddForeignKey(new[] { customerFk3A, customerFk4B }, otherCustomerKey);
var fk3 = orderType.AddForeignKey(new[] { customerFk3A, customerFk3B }, otherCustomerKey);
var fk1 = orderType.AddForeignKey(customerFk1, customerKey);
Assert.True(new[] { fk1, fk2, fk3, fk4 }.SequenceEqual(orderType.GetForeignKeys()));
}