Replace PXStringList with PXSelector

Hello Community,

in CRCase there is a field called “Priority” it uses the CRCasePriorityAttribute to get its values from a PXStringList.

Now I want to values to be stored into the DB by a DAC.

I created the DAC and I also tried building a DAC Extension on CRCase.

However it seems it doesn’t work.

So far the Extension looks like this:

public class CRCaseExt : PXCacheExtension<PX.Objects.CR.CRCase>
  {

    #region Priority
    [PXDBString(1, IsFixed = true)]
    [PXDefault('M')]
    [PXUIField(DisplayName = "Priority")]
    [PXSelector(
        typeof(Search<CRCaseMyPriority.priorityId>),
        typeof(CRCaseMyPriority.priorityId),
        typeof(CRCaseMyPriority.priorityValue),
        typeof(CRCaseMyPriority.sortOrder),
        DescriptionField = typeof(CRCaseMyPriority.priorityValue)
    )]
    public virtual String Priority { get; set; }
    #endregion

  }

When I publis this the DropDownList of the Priority gets empty and no values are there to select.

The DB however is populated and also the Maintenance Screen of the DAC ist showing the records from the database.

Can you give me a hint on what may be missing or maybe just wrong?