How do I pass a multidimentional bytearray to a user control?

In Class Modules, I can just use the "let property" statement, but in a User Control it doesn't work. From the Control's point of view, it thinks I'm passing it an undimentioned array (as if I'd created an array variable with Dim Varname() but had then forgotten to use Redim to give it dimentions). But it DOES have dimentions. I DID user redim. It is a 4 dimentional byte array. But it's not working. I tried to migrate my class into a user control because user controlls have "event" functionality that class modules don't have. And while most of it works. It doesn't seem to like being passed byte arrays, while the class had no problem doing so.

I need help.