Like the girls said before, you can try eventinh which combined dressage and jumping plus cross country.
If you can't, you should know that dressage and jumping complement one another so you can easily practise both. All jumping riders work their horses on flat work and dressage and a lot of dressage rider uses small jump and pole work to exercise their horses.
Hope this helps you :)
Try eventing. Best of both worlds!
As Kailey said you could go for eventing as this has dressage xc and showjumping, there are also combined training events which is dressage and showjumping, I used to compete in dressage but i would also school over jumps without competing :)