public DbReferenceEntry <TEntity, TProperty> Reference <TProperty>(
Expression <Func <TEntity, TProperty> > navigationProperty)
where TProperty : class
{
Check.NotNull <Expression <Func <TEntity, TProperty> > >(navigationProperty, nameof(navigationProperty));
return(DbReferenceEntry <TEntity, TProperty> .Create(this._internalEntityEntry.Reference(DbHelpers.ParsePropertySelector <TEntity, TProperty>(navigationProperty, nameof(Reference), nameof(navigationProperty)), typeof(TProperty))));
}
/// <summary>
/// Gets an object that represents the reference (i.e. non-collection) navigation property from this
/// entity to another entity.
/// </summary>
/// <typeparam name="TProperty"> The type of the property. </typeparam>
/// <param name="navigationProperty"> The name of the navigation property. </param>
/// <returns> An object representing the navigation property. </returns>
public DbReferenceEntry <TEntity, TProperty> Reference <TProperty>(
string navigationProperty)
where TProperty : class
{
Check.NotEmpty(navigationProperty, nameof(navigationProperty));
return(DbReferenceEntry <TEntity, TProperty> .Create(this._internalEntityEntry.Reference(navigationProperty, typeof(TProperty))));
}
public void Generic_DbReferenceEntry_typed_as_DbMemberEntry_can_be_implicitly_converted_to_non_generic_DbReferenceEntry()
{
DbMemberEntry <FakeWithProps, FakeEntity> propEntry =
new DbReferenceEntry <FakeWithProps, FakeEntity>(
new InternalReferenceEntry(
new Mock <InternalEntityEntryForMock <FakeEntity> >().Object, FakeWithProps.ReferenceMetadata));
NonGenericTestMethod((DbReferenceEntry)propEntry, "Reference");
}
/// <summary>
/// Returns the equivalent generic <see cref="T:System.Data.Entity.Infrastructure.DbReferenceEntry`2" /> object.
/// </summary>
/// <typeparam name="TEntity"> The type of entity on which the member is declared. </typeparam>
/// <typeparam name="TProperty"> The type of the property. </typeparam>
/// <returns> The equivalent generic object. </returns>
public DbReferenceEntry <TEntity, TProperty> Cast <TEntity, TProperty>() where TEntity : class
{
MemberEntryMetadata entryMetadata = this._internalReferenceEntry.EntryMetadata;
if (!typeof(TEntity).IsAssignableFrom(entryMetadata.DeclaringType) || !typeof(TProperty).IsAssignableFrom(entryMetadata.ElementType))
{
throw Error.DbMember_BadTypeForCast((object)typeof(DbReferenceEntry).Name, (object)typeof(TEntity).Name, (object)typeof(TProperty).Name, (object)entryMetadata.DeclaringType.Name, (object)entryMetadata.MemberType.Name);
}
return(DbReferenceEntry <TEntity, TProperty> .Create(this._internalReferenceEntry));
}
public DbReferenceEntry <TEntity, TProperty> Reference <TProperty>(
Expression <Func <TEntity, TProperty> > navigationProperty)
where TProperty : class
{
Check.NotNull(navigationProperty, "navigationProperty");
return
(DbReferenceEntry <TEntity, TProperty> .Create(
_internalEntityEntry.Reference(
DbHelpers.ParsePropertySelector(navigationProperty, "Reference", "navigationProperty"),
typeof(TProperty))));
}
/// <summary>
/// Returns the equivalent generic <see cref="DbReferenceEntry{TEntity,TProperty}" /> object.
/// </summary>
/// <typeparam name="TEntity"> The type of entity on which the member is declared. </typeparam>
/// <typeparam name="TProperty"> The type of the property. </typeparam>
/// <returns> The equivalent generic object. </returns>
public new DbReferenceEntry<TEntity, TProperty> Cast<TEntity, TProperty>() where TEntity : class
{
var metadata = _internalReferenceEntry.EntryMetadata;
if (!typeof(TEntity).IsAssignableFrom(metadata.DeclaringType)
|| !typeof(TProperty).IsAssignableFrom(metadata.ElementType))
{
throw Error.DbMember_BadTypeForCast(
typeof(DbReferenceEntry).Name,
typeof(TEntity).Name,
typeof(TProperty).Name,
metadata.DeclaringType.Name,
metadata.MemberType.Name);
}
return DbReferenceEntry<TEntity, TProperty>.Create(_internalReferenceEntry);
}
private static DbReferenceEntry ImplicitConvert(DbReferenceEntry nonGeneric)
{
return(nonGeneric);
}
private void NonGenericTestMethod(DbReferenceEntry nonGenericEntry, string name)
{
Assert.Same(name, nonGenericEntry.Name);
}
/// <summary>
/// Gets an object that represents the reference (i.e. non-collection) navigation property from this
/// entity to another entity.
/// </summary>
/// <param name="navigationProperty"> The name of the navigation property. </param>
/// <returns> An object representing the navigation property. </returns>
public DbReferenceEntry Reference(string navigationProperty)
{
Check.NotEmpty(navigationProperty, "navigationProperty");
return(DbReferenceEntry.Create(_internalEntityEntry.Reference(navigationProperty)));
}
/// <summary>
/// Gets an object that represents the reference (i.e. non-collection) navigation property from this
/// entity to another entity.
/// </summary>
/// <param name="navigationProperty"> The name of the navigation property. </param>
/// <returns> An object representing the navigation property. </returns>
public DbReferenceEntry Reference(string navigationProperty)
{
Check.NotEmpty(navigationProperty, nameof(navigationProperty));
return(DbReferenceEntry.Create(this._internalEntityEntry.Reference(navigationProperty, (Type)null)));
}
