public static Object BindEDFieldValue(this Object instance, MemberInfo mi, AbstractBindMember bm, Object dbvalue)
{
FkMemberInfo fk = mi as FkMemberInfo;
if (fk == null) return bm.bind(instance, mi, dbvalue);
Object entity = bm.GetValue(instance, instance.GetType().GetMember(fk.ToBindInfo.Name)[0]);
return bm.bind(entity, fk.PkInfo, dbvalue);
}
public static Object GetEDFieldValue(this Object instance, MemberInfo mi, AbstractBindMember bm)
{
FkMemberInfo fk = mi as FkMemberInfo;
if (fk == null)
return ValidDBValue(bm.GetValue(instance, mi));
Object entity = bm.GetValue(instance, instance.GetType().GetMember(fk.ToBindInfo.Name)[0]);
return bm.GetValue(entity, fk.PkInfo);
}
public FkMemberInfo(MemberInfo memberInfo, Type instanceFrom, AbstractBindMember bindMember)
{
ToBindInfo = memberInfo;
InstanceType= bindMember.GetMemberType(memberInfo);
if (InstanceType != null) MyInstance = Activator.CreateInstance(InstanceType, null);
PkInfo = InstanceType.GetPkMemberInfo();
if (PkInfo == null)
throw new Exception("Every entity must have a Primary Key!");
if (instanceFrom != InstanceType)
{
DBNameAttribute fieldNameAttribute = (DBNameAttribute)PkInfo.GetCustomAttribute(typeof(DBNameAttribute));
PkName = (fieldNameAttribute != null)
? fieldNameAttribute.Name
: PkInfo.Name;
}
else
PkName = memberInfo.Name;
}
// Convert System.Type to SqlDbType
public static SqlDbType GetSqlDbType(this MemberInfo mi, Object instance, AbstractBindMember bm)
{
return new SqlParameter("x", instance.GetEDFieldValue(mi, bm)).SqlDbType;
}
