Hello,
My son was a little older when he left his crib (at his request). For about 3 months, I just put the crib mattress on the floor and then I purchased him a big boy bed. For awhile, we had no issues with him getting up.. eventually, he did start to get up so we began to make a bedtime rule, which we repeated and repeated and repeated (we would also ask him to tell us what the rule was) -- it was not to get out of bed.
Perhaps, you could try a "new" toddler bed or regular size bed (I can't tell if you crib is a convertable kind of if you've just taken off the side to the crib) and see if that makes a difference. It sounds like she is interested in sleeping in a regular bed. Maybe if you got a new bed (even if just a matress on the floor for awhile) with some fun new bedding she'll be interested in sleeping in her "big girl bed".
Good luck. You'll probably still need to put her back in bed and remind her of the rule. She is only 2 afterall.
Good luck
L.