Child in RootList is saved when it is unchanged.

Child in RootList is saved when it is unchanged.

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TF Zheng posted on Monday, July 02, 2012

We have model below for 10 buildings:

     Buildings (EditableRootList) ---àFloors(EditableChildList) -----à Rooms(EditableChildList)

But, each time of Save() in folowing code, it creates a new record for the previous saved-records.

Anything I did wrong or I missed? (I did use CSLA extension for code generation)

buildingList = BuildingList.New();

for (int i = 0; i < 10; i++)


  Building building = buildingList.AddNew();   //Add a new Building. 

  InitializeBuilding(building);         //Initialize the newly added Building.

  buildingList.Save();  //Suppose only Save the newly added to DB. But NOT.   


Thanks for any suggestions…

JonnyBee replied on Tuesday, July 03, 2012


#1: Make sure to set the proper state of yuor child objects. Default is IsNew. You must call MarkOld (or use the DataPortal to call DataPortal_XYZ methods) to mark the object as Existing.

#2: Finally - your code in Insert/Update method must decide whether or not to save the item based on the state (IsSelfDirty, IsNew, IsDeleted). F.ex: maybe you need to recalculate something based on a parent property even if the child itself did not change.

What is the code inside InitializeBuiding method?

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