本文整理汇总了C#中EntityType.RemoveForeignKey方法的典型用法代码示例。如果您正苦于以下问题：C# EntityType.RemoveForeignKey方法的具体用法？C# EntityType.RemoveForeignKey怎么用？C# EntityType.RemoveForeignKey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.RemoveForeignKey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_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.ForeignKeys.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.ForeignKeys.ToArray());
Assert.Same(fk2, orderType.RemoveForeignKey(new ForeignKey(new[] { customerFk2 }, customerKey)));
Assert.Empty(orderType.ForeignKeys);
}示例2: FK_back_pointer_is_fixed_up_as_FK_is_added
public void FK_back_pointer_is_fixed_up_as_FK_is_added()
{
var entityType = new EntityType(typeof(Customer));
var property = entityType.AddProperty(Customer.IdProperty);
entityType.SetKey(property);
var foreignKey
= entityType.AddForeignKey(entityType.GetKey(), property);
Assert.Same(entityType, foreignKey.EntityType);
Assert.Same(entityType, property.EntityType);
entityType.RemoveForeignKey(foreignKey);
// Currently property is not removed when FK is removed
Assert.Empty(entityType.ForeignKeys);
Assert.Same(property, entityType.Properties.Single());
Assert.Same(entityType, foreignKey.EntityType); // TODO: Throw here?
Assert.Same(entityType, property.EntityType);
}