CDataArray2DVector3f question

[Victorcg]

Hi all.
Several questions about arrays workflow inside Visual Studio:
I have a variable outData of CDataArray2DVector3f-type. I don't know its' size before I start use it. As I understand, outData.Resize(i,j) should insert j-elements from i-position in array? Any other ways, maybe? And when I try to get outData.GetCount(), it returns 1. Why? Where could I read about work wwith arrayys? The SDK is very poor as for examples.