So DD is now hitting the terrible 2's and she is really living up to what I have heard about this ever so wonderful phase, LOL!! We have an extremely strong willed/stubborn little girl so we are needing to be firm with her but we can't make any head way on getting her to sit and eat her tea. She refuses to sit in her high chair, won't sit on a booster. She will stand on a dining chair for a few mouthfuls then she is off. She will sit on DH's lap but that's it. We have tried making her sit in her chair but she throws her dinner over the floor continuously. We have tried time out and not getting any dessert the nights she doesn't eat tea. We are really torn between making her sit to eat and her not eating.
So how do I get her to eat at the table sitting down?? I'm completely out of ideas so any ideas/help will be greatly appreciated. She is now starting to do the same at childcare.

TIA