Re: what to tell your child ?
How old is your daughter?
My niece is 10 and her father passed tragically two years ago. She is surprising doing okay. My bhabhi has made sure that she has numerous positive male role models around her including her brothers, grandparents.
She may ask specific questions later on in life so be sure you are ready to explain them to her.
I have seen many many single parents doing a excellent job of raising there kids by themselves without a significant other and the children are okay with that.
Truth be told, I think it's harder on the spouse that it is on the kids.