Easierst way to auto generate passwords

In my asp.net app, I have a class that is responsible for authentication.. it is also responsible for generating passwords (figured it was logical to have that class do that)

ANyway, what is the best way in vb.net to generate an alphanumeric string of 8 random numbers and letters?

I figured I will random 8 integers and then convert them to chars (in a certain interval of course), but how can I convert them into a string? I am used to C++ with chars and char*... can't make it out in vb.net what is the best method to do the conversion itself from int to char? is there a .net method?

kind regards
Henrik

Is it as simple as using the chr() function?

chr(65) = 'A'

asc('A') = 65