How do you set a default value on a new entity that does not have a default in the table. This property would be read-only. Ex. On new item, I would always say entity.field = 10;

Please see 'Add your own code to the generated classes' in the documentation and add code like this: if(this.Fields.State == EntityState.New) { this.FieldName = 10; }

to the initclass method of the entity. (initclassempty). Either to the user code region, or use an include template.