private void RegistForeignKeyMonitor(IEntityProxyInfo childEntityProxy)
{
if (foreignKeyMap == null)
{
foreignKeyMap = new Dictionary <Guid, object>();
}
var rowId = childEntityProxy.Proxy.Row.InternalId;
if (foreignKeyMap.ContainsKey(rowId))
{
return;
}
childEntityProxy.Proxy.Row.PropertyChanged += new PropertyChangedEventHandler(OnNotifyForeignPropertyChanged);
string key = childEntityProxy.Proxy.Row.PrimaryKey; //EntityTableHelper<TEntity>.RetriveKey(childEntity);
if (string.IsNullOrEmpty(key)) ////PID不可為空
{
key = Guid.NewGuid().ToString();
childEntityProxy.Proxy.Row.SetPrimaryKey(key, true);
}
foreignKeyMap[rowId] = key;
this.EntityRelation.Keys.Add(key);
UpdateContent();
}
protected void DoAdd(TEntity childEntity)
{
IEntityProxyInfo childEntityProxy = childEntity as IEntityProxyInfo;
if (!string.IsNullOrEmpty(childEntityProxy.Proxy.Row.Table.Namespace))
{
SetForeignRelation(childEntityProxy.Proxy.Row.Table.Namespace, childEntityProxy.Proxy.Row.Table.TableName);
}
//修正所有子ForeignField的孫設定
if (IsEnablePropagateForeignSetting)
{
PropagateForeignSetting(
childEntity
, (PropagateForeignSettingMethod != null) ? PropagateForeignSettingMethod : (itemForeignField) => itemForeignField.SetForeignRelation(EntityRelation.Namespace)
);
}
RegistForeignKeyMonitor(childEntityProxy);
}
static public void PropagateForeignSetting(TEntity itemEntity, Action <IForeignSetBaseField> settingMethod)
{
IEntityProxyInfo childEntityProxy = itemEntity as IEntityProxyInfo;
Type type = typeof(TEntity);
foreach (var propInfo in type.GetProperties())
{
if (typeof(IForeignSetBaseField).IsAssignableFrom(propInfo.PropertyType))
{
var itemForeignField = propInfo.GetValue(itemEntity, null) as IForeignSetBaseField;
if (itemForeignField == null)
{
continue;
}
itemForeignField.PropagateForeignSettingMethod = settingMethod;
settingMethod(itemForeignField);
}
}
}