Vb.Net convert StrDub to C#.net

Question

I have this line of code:

strKey &= Strings.StrDup(intKeySize - intLength, chrKeyFill)

What is the equivalent of this code in C#? I can't seem to find it.

Answer 1

strKey += strKey.PadRight(strKey.Length + (intKeySize - intLength), chrKeyFill)

Answer 2

strKey += new String(chrKeyFill, intKeySize - intLength);

or

strKey = strKey.PadRight(intKeySize, chrKeyFill)