My DD was not interested in potty training at all until 3.3. Finally she is now in pants and wees every time on the loo and will ask when she needs to go..also dry at night sometimes.
However we have the same problem with poos..my DD will only poo in a nappy and asks for one when she needs to go. She poos standing up so I think this is one of the reasons she is unable to poo on the loo.
I had the same problem with my DS 3 yrs ago who also liked to Poo standing up. Both my children are prone to constipation so this could be a reason they find it hard to poo on the loo.
With my DS the HV said to cut bananas out of his diet and make sure he drank plenty. She also suggested putting him on the loo after breakfast and after tea and encouraging him to try to poo then....I was not optimistic but within 10 days of this strategy he did a poo on the loo and we have had no problems since.
I had hoped that things would be easier with my DD but as she is showing no interest in pooing on the loo I will have to try similar strategies with her...I keep hoping she will suddenly decide to poo on the loo..but no sign of this happening yet.
Wigwambam's advice sounds good for encouraging moving towards the loo for poos...I might try that too.
My DD also likes to examine her poos in her pullups!!
Luckily my DD loves her big girl pants..has some upsy daisy ones and peppa pig..maybe you could try buying pants with your dds favourite character on.
Good luck ...it sounds as though you are doing well if your DD is weeing on the potty at 2.6 ...I had no success whatsoever until after 3 with my children.