Dishwasher won't drain water

The bubbles created by the dish soap could cause poor draining, but I would think it would just cause more of a bubble problem than a draining problem...
Either way, some people would say to throw a cup of vinegar into the wash area, but I prefer to just use water.
Disconnect the drain line from the machine at the sink and route it into a 5 gallon bucket. Drain and fill the machine several times to clear the bubbles out. This will also give you the opportunity to see if the drain problem you state is a machine problem or a drain problem.
Hope this helps,
Kermit