public NavigationPropertyBindingConfiguration HasSingletonBinding <TTargetType, TDerivedEntityType>(
Expression <Func <TDerivedEntityType, TTargetType> > navigationExpression,
NavigationSourceConfiguration <TTargetType> targetSingleton)
where TTargetType : class
where TDerivedEntityType : class, TEntityType
{
if (navigationExpression == null)
{
throw Error.ArgumentNull("navigationExpression");
}
if (targetSingleton == null)
{
throw Error.ArgumentNull("targetSingleton");
}
EntityTypeConfiguration <TDerivedEntityType> derivedEntityType =
this._modelBuilder.EntityType <TDerivedEntityType>().DerivesFrom <TEntityType>();
NavigationPropertyConfiguration navigation = derivedEntityType.HasRequired(navigationExpression);
IList <MemberInfo> bindingPath = new List <MemberInfo>
{
typeof(TDerivedEntityType),
navigation.PropertyInfo
};
return(this.Configuration.AddBinding(navigation, targetSingleton.Configuration, bindingPath));
}
public NavigationPropertyBindingConfiguration HasRequiredBinding <TTargetType, TDerivedEntityType>(
Expression <Func <TDerivedEntityType, TTargetType> > navigationExpression, string entitySetName)
where TTargetType : class
where TDerivedEntityType : class, TEntityType
{
if (navigationExpression == null)
{
throw Error.ArgumentNull("navigationExpression");
}
if (String.IsNullOrEmpty(entitySetName))
{
throw Error.ArgumentNullOrEmpty("entitySetName");
}
EntityTypeConfiguration <TDerivedEntityType> derivedEntityType =
this._modelBuilder.EntityType <TDerivedEntityType>().DerivesFrom <TEntityType>();
NavigationPropertyConfiguration navigation = derivedEntityType.HasRequired(navigationExpression);
IList <MemberInfo> bindingPath = new List <MemberInfo>
{
typeof(TDerivedEntityType),
navigation.PropertyInfo
};
return(this.Configuration.AddBinding(navigation,
this._modelBuilder.EntitySet <TTargetType>(entitySetName).Configuration, bindingPath));
}