array combinations

Question

Hi, I have two different arraylists such as Array1={"a", "sd", "fgh"} and Array2 = {"c", "op"}. I want to find out the possible combinations of items in these two Arrays....The output will be...
asd,sda,ac,ca,aop,opa,csd,sdc,fgha,afgh,opfgh,fghop,..etc.

I am using C#.Net 2 Win Apps.....

Thanks in advance