In .Net you can read a string value into another data type using either or Convert.To.
I\'m not fam
If you need speed, I'm pretty sure a direct cast is the fastest way. That being said, I normally use .Parse or .TryParse because is seems to make things easier to read, and behave in a more predictable manner.
Convert actually calls Parse under the hood, I believe. So there is little difference there, and its really just seems to be a matter of personal taste.