private NavigationEntryMetadata ValidateAndGetNavigationMetadata(
string navigationProperty,
Type requestedType,
bool requireCollection)
{
if (InternalEntityEntry.SplitName(navigationProperty).Count != 1)
{
throw Error.DbEntityEntry_DottedPathMustBeProperty((object)navigationProperty);
}
NavigationEntryMetadata navigationMetadata = this.GetNavigationMetadata(navigationProperty);
if (navigationMetadata == null)
{
throw Error.DbEntityEntry_NotANavigationProperty((object)navigationProperty, (object)this.EntityType.Name);
}
if (requireCollection)
{
if (navigationMetadata.MemberEntryType == MemberEntryType.ReferenceNavigationProperty)
{
throw Error.DbEntityEntry_UsedCollectionForReferenceProp((object)navigationProperty, (object)this.EntityType.Name);
}
}
else if (navigationMetadata.MemberEntryType == MemberEntryType.CollectionNavigationProperty)
{
throw Error.DbEntityEntry_UsedReferenceForCollectionProp((object)navigationProperty, (object)this.EntityType.Name);
}
if (!requestedType.IsAssignableFrom(navigationMetadata.ElementType))
{
throw Error.DbEntityEntry_WrongGenericForNavProp((object)navigationProperty, (object)this.EntityType.Name, (object)requestedType.Name, (object)navigationMetadata.ElementType.Name);
}
return(navigationMetadata);
}
public virtual InternalMemberEntry Member(
string propertyName,
Type requestedType = null)
{
Type type = requestedType;
if ((object)type == null)
{
type = typeof(object);
}
requestedType = type;
IList <string> properties = InternalEntityEntry.SplitName(propertyName);
if (properties.Count > 1)
{
return((InternalMemberEntry)this.Property((InternalPropertyEntry)null, propertyName, properties, requestedType, false));
}
MemberEntryMetadata memberEntryMetadata = (MemberEntryMetadata)this.GetNavigationMetadata(propertyName) ?? (MemberEntryMetadata)this.ValidateAndGetPropertyMetadata(propertyName, this.EntityType, requestedType);
if (memberEntryMetadata == null)
{
throw Error.DbEntityEntry_NotAProperty((object)propertyName, (object)this.EntityType.Name);
}
if (memberEntryMetadata.MemberEntryType != MemberEntryType.CollectionNavigationProperty && !requestedType.IsAssignableFrom(memberEntryMetadata.MemberType))
{
throw Error.DbEntityEntry_WrongGenericForNavProp((object)propertyName, (object)this.EntityType.Name, (object)requestedType.Name, (object)memberEntryMetadata.MemberType.Name);
}
return(memberEntryMetadata.CreateMemberEntry(this, (InternalPropertyEntry)null));
}
public InternalPropertyEntry Property(
InternalPropertyEntry parentProperty,
string propertyName,
Type requestedType,
bool requireComplex)
{
return(this.Property(parentProperty, propertyName, InternalEntityEntry.SplitName(propertyName), requestedType, requireComplex));
}