如何获取二维数组中的项目数

Question

I'm trying to get the count of items in one of the dimensions of a 2 dim array.

For example, a simplistic version of my array looks like this:

my_array(0)(1) = "a"
my_array(0)(2) = "b"
my_array(0)(3) = "c"

I'm trying to find out the count of items in my_array(0). But of course you can't do "my_array(0).count", so trying "my_array.count" simply gives me 1. So how do I get the count of the items in the second dimension?

Thanks.

Answer 1

您可以使用GetLength ：

Dim dimLength = my_Array.GetLength(1)

Answer 2

如果要查找数组中每个元素的计数，则可能需要考虑使用Sum函数：

Dim totalcount As Integer = m_array.Sum(Function(x) x.Count)