How do you get the Ubound of a 2 dimensional array?

I have a 2-dimensional array like this URLForward(1,9) and I want to do something like this like

Ubound(urlforward)

But I want the ubound of the second part of the array not the first part or whatever..

For exampled the array is redimensioned everytime first during runtime and then when the user clicks a button...

So it will look like this
URLFORWARD(index,9) = whatever

or
URLFORWARD(index,7) = whatever

index can equal to whatever.. depends on what it was redimensioned to! But I want to be able depending on what the index is get the ubound of the 2nd part of the array. Like if it was URLFORWARD(index,6) the ubound would be 6.

I have no idea how to do this any help?

Is this what you want?

Dim MyArray(5, 9)

' Should return 9
RetVal = UBound(MyArray, 2)
Form1.Print RetVal