public EntityObject NewEntityFromOrig(MetadataWorkspace mdw)
{
var newEntity = Activator.CreateInstance(_detachedEntity.GetType());
var newEntityObj = (EntityObject)newEntity;
newEntityObj.EntityKey = _entityKey;
//use metadata and Reflection to populate entity
var etype = newEntity.GetType();
foreach (var p in etype.GetProperties())
{
//find the correct property in origvalues
object origPropertyValue;
if (_origValues.TryGetValue(p.Name, out origPropertyValue))
{
p.SetValue(newEntity, origPropertyValue, null);
}
else
{
if (p.PropertyType.Name.StartsWith("EntityReference"))
{
//there is a "'1" in the propertytype.name
var lastReference = p.Name.LastIndexOf("Reference");
var entName = p.Name.Remove(lastReference);
var entitySetName = mdw.GetEntitySetName(entName);
var eref = (EntityReference)(p.GetValue(newEntity, null));
//be sure that a deleted relationship is added before an added relationship
foreach (var rel in _relationships)
{
if (rel.CurrentEndA.EntitySetName == entitySetName)
{
//this is the entitykey we want,
//but we need to set entityreference.entitykey
eref.EntityKey = rel.CurrentEndA;
}
else if (rel.CurrentEndB.EntitySetName == entitySetName)
{
eref.EntityKey = rel.CurrentEndB;
}
}
//find entitykey
}
}
}
//after this, the calling code needs to attach to context,
// then apply property changes using the detached entity
return((EntityObject)newEntity);
}