I have an object model that emulates a table structure. The model implements 3 specific types of tables, a code list, decision table and version control. A table has columns and rows and a row has cells. I have abstract base classes for table, column, row and cell and their lists. Then I have concrete classes for each type of table. without getting into every class in the inheritance tree, here is a short example:
public abstract class Rows<TList, TEntity> : BusinessListBase<Rows<TList, TEntity>, Row<TEntity>>
where TList : Rows<TList, TEntity>
where TEntity : Row<TEntity>
public abstract class Row<TEntity> : PersistableItem<TEntity>, IRow where TEntity : AqsBusinessBase<TEntity>
public abstract class AqsBusinessBase<T> : BusinessBase<T>
where T : AqsBusinessBase<T>
public class DecisionTableRow : Row<DecisionTableRow>
public class DecisionTableRows : Rows<DecisionTableRows, DecisionTableRow>
Everything works fine. All my factories work. I can fetch data, create new data, edit data and persist the data to the DB. Where I am experiencing an issue is in deleting from any list. When I call GetDeletedList in my DecisontableRowsFactory,I get the following exception:
DataPortal.Update failed (System.InvalidCastException: Unable to cast object of type 'Csla.Core.MobileList`1[AQS.ProductDefinition.DomainCSLA.Repository.Business.Row`1[AQS.ProductDefinition.DomainCSLA.Repository.Business.DecisionTableRow]]'
to type 'Csla.Core.MobileList`1[AQS.ProductDefinition.DomainCSLA.Repository.Business.DecisionTableRow]'.
at Csla.Server.ObjectFactory.GetDeletedList(Object obj) in C:\Visual Studio
The call is made as:
var deletedList = GetDeletedList<DecisionTableRow>(rows);
I thought I had all the template inheritance figured out but I am obviously missing something. Anyone have any ideas?
Never mind. Sorry to bother the forum, I have ti resolved. Had to call GetDeletedList with the proper signature GetDeletedList<Row<DecisionTableRow>>(rows);
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