Vanatec OpenAccess migration

[Roman]

Hi

I'm trying to migrate a project from Visual Studio 2005 to 2008.

Therefore I replaced the Vanatec OpenAccess with the lastet Telerik OpenAccess build and did all the steps from the article "Moving form Vanatec to Telerik OpenAccess".

When I try to run my program I get the following exception:

Class 'Astra.Mistra.Vmon.Common.DataModel.Persistence.Calendar' uses internal identity but has a pk field 'id'. --> DataModel, Version=1.1.3.0, Culture=neutral, PublicKeyToken=null/namespace[Astra.Mistra.Vmon.Common.DataModel.Persistence]/class[Astra.Mistra.Vmon.Common.DataModel.Persistence.Calendar]

The class is declared as

[

Persistent(IdentityField = "id")]

 

 

public class Calendar : VersionableObject

 

{

    ...
}

The code runs with the same mapping under Vantec OpenAccess, any idea?

When I try to change the mapping and open therefore  the "Forward Mapping" dialog, it opens, but when I try to select one of the persistent classes I get the following exception:

Exception: Key cannot be null.

 

Parameter name: key

Generated by the method:

System.Object get_Item(System.Object)

 

Stack Trace:

at System.Collections.Hashtable.get_Item(Object key)

 

at OpenAccessRuntime.DataObjects.tools.workbench.model.MdClass.setFetchGroupMapping()

at OpenAccessRuntime.DataObjects.tools.workbench.model.MdClass.analyze(Boolean notifyDatastore)

at OpenAccessRuntime.DataObjects.tools.workbench.model.MdProject.analyzeAllClasses()

at OpenAccessRuntime.DataObjects.tools.workbench.model.MdProject.syncAllClassesAndInterfaces()

at OpenAccessRuntime.DataObjects.tools.workbench.model.MdProject.load(IMappingData[] _mappingData, IDictionary _configProps)

at Telerik.OpenAccess.Sdk.Addin.UserControls.MdProjectHelper.CreateMdProject(VAProject project)

at Telerik.OpenAccess.Sdk.Addin.UserControls.MdProjectHelper.GetMdProject(VAProject project)

at Telerik.OpenAccess.Sdk.Addin.UserControls.PersistentUserControl.ActivateUserControl(VAProject actualProject)

at Telerik.OpenAccess.Sdk.Addin.UserControls.ClassViewControl.classTreeView_AfterSelect(Object sender, TreeViewEventArgs e)

Exception Type:

System.ArgumentNullException

 

Is there something I have to remove/change from the existing "Vanatec" mapping?

Thanks for your input!

Roman

[Jan Blessenohl]

Hello Roman,
If the id field is in the base class you have to prepend it with the base class name. Can you please try:

[Persistent(IdentityField = "VersionableObject.id")]

Greetings,
Jan Blessenohl
the Telerik team

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