Converting from decimal to binary and back in C#?

Question

Algorithms

How to quickly convert from decimal to binary in C#?
And how to add zeros when converting from binary to decimal:

int i = Convert.ToInt32("2");
            Console.WriteLine(Convert.ToString(i, 2));

The output is 10, but it is necessary - 0010 how to format the output?
And how to divide into two parts 1101 0101?
A = 1101
B = 0101

Answer 1

Read about string formatting on the official site , and choose the implementation that suits you best.

Answer 2

Found the answer myself much easier Convert.ToString(To[i], 2).PadLeft(8, '0');