If increasing the VV size, new elements are set to dummies. It is good practice to set the length ahead of time to the expected maximum value, as some VV processes rely on the current maximum length of the VV when you pass it in as an argument, and unexpected results may occur if the length is not what you expect it to be because of dynamic allocation at an earlier time.

public void SetLen(
	int i1
)

Public Sub SetLen ( 
	i1 As Integer
)

public:
void SetLen(
	int i1
)

member SetLen : 
        i1 : int -> unit