Convert Int64 to binary and back?

Is there a way to convert Int64 to 开发者_StackOverflowbinary and back to Int64?

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var bytes = BitConverter.GetBytes(long);
var value = BitConverter.ToInt64(bytes, 0);

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if string formatting is what you need:

Convert.ToString(someInt64, 2);
Convert.ToUInt64("101010", 2);

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Similar to HuBeZa's answer, this converts type long to string:

Convert.ToString(Convert.ToInt64(myLongInt), 2);