hi, iv planted violas and pansys over some tulip and daffadill bulbs in a very large container

Yes they will happily grow up through the bedding plants and make a great display next spring.

And look lovely....I forgot and planted blue viola and had a lovely suprise when red tulips came through them in the spring

not only that iv planted daffadills in front of tulips. have i made a typical beginners mistake? will tulips still show?

Nope the daffies will flower then the tulips... Think of your actual garden, it has all sorts growing in it and the grow up, through and around each other.

ah yes thank you very much for your kind advice