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PETAPOCO No Property of type ICollection`1 found on object of type:

I am having my sql as 

Connection.db.FetchOneToMany<Project, CustomerProject>(x => x.ID, string.Format(@"
            SELECT * 
            FROM Project                   
            left join customerProject on customerProject.ProjectID = project.id
                where customerProject.CustomerID = @0  ORDER BY project.Name", customerID));

which is giving me the error

No Property of type ICollection`1 found on object of type: Project

CustomerProject definition

ID CustomerID ProjectID

Project definition

ID Name

What is wrong with the query?

Solution

  • You don't have a property of type List<CustomerProject> on your Project type. This is required if you want to do a OneToMany<> query. You will have to use the [Ignore] attribute on it too.