本文整理汇总了C#中Model.GetOrAddKey方法的典型用法代码示例。如果您正苦于以下问题：C# Model.GetOrAddKey方法的具体用法？C# Model.GetOrAddKey怎么用？C# Model.GetOrAddKey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Model的用法示例。
在下文中一共展示了Model.GetOrAddKey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: CreateSelfRefFK
private ForeignKey CreateSelfRefFK(bool useAltKey = false)
{
var entityType = new Model().AddEntityType(typeof(SelfRef));
var pk = entityType.GetOrSetPrimaryKey(entityType.AddProperty(SelfRef.IdProperty));
var fkProp = entityType.AddProperty(SelfRef.SelfRefIdProperty);
var property = entityType.AddProperty("AltId", typeof(int));
var principalKey = useAltKey
? entityType.GetOrAddKey(property)
: pk;
var fk = entityType.AddForeignKey(new[] { fkProp }, principalKey, entityType);
fk.IsUnique = true;
entityType.AddNavigation("SelfRefPrincipal", fk, pointsToPrincipal: true);
entityType.AddNavigation("SelfRefDependent", fk, pointsToPrincipal: false);
return fk;
}示例2: Adding_a_foreign_key_throws_if_related_entity_is_from_different_model
public void Adding_a_foreign_key_throws_if_related_entity_is_from_different_model()
{
var dependentEntityType = new Model().AddEntityType(typeof(Customer));
var fkProperty = dependentEntityType.GetOrAddProperty(Customer.IdProperty);
var principalEntityType = new Model().AddEntityType(typeof(Order));
var idProperty = principalEntityType.GetOrAddProperty(Order.IdProperty);
Assert.Equal(
CoreStrings.EntityTypeModelMismatch(typeof(Customer).FullName, typeof(Order).FullName),
Assert.Throws<InvalidOperationException>(() => dependentEntityType.AddForeignKey(new[] { fkProperty }, principalEntityType.GetOrAddKey(idProperty), principalEntityType)).Message);
}