[VB.NET] Fixed string length

[Ron]

I've searched google but I can't seem to find what I'm looking for.

I'm trying to set the limit on a string to 64 characters long. Google tells me,

<VBFixedString(64)>

will do the trick, but in my case it doesn't. VBFixedString sets all unused bytes to 20, but I need them set to 00.