partial void DeleteProjData_pjda(ProjData_pjda instance);
partial void InsertProjData_pjda(ProjData_pjda instance);
partial void UpdateProjData_pjda(ProjData_pjda instance);
private void detach_ProjData_pjda(ProjData_pjda entity)
{
this.SendPropertyChanging();
entity.PrintProject_ppj = null;
}