CreateOrUpdate, Update, Get, GetForUpdate and Delete actions not available.

CreateOrUpdate, Update, Get, GetForUpdate and Delete actions not available.

  
When an entity does not have any primary key defined, only the Create action is available.
If you need other functionality besides Create and Select (using queries) you should;
- Define a primary key for the entity, or
- Use Advanced Queries
Thanks i got all actions on setting the primarykey for Id.
Can you please give some example of handling the Calenders in the Form