В VB.NET строки можно разбивать различными способами. Вот несколько примеров:

1. Метод разделения:

   Dim input As String = "Hello,World"
   Dim result() As String = input.Split(","c)
   ' result = {"Hello", "World"}

2. Метод разделения с несколькими разделителями:

   Dim input As String = "Hello;World|OpenAI"
   Dim delimiters() As Char = {";"c, "|"c}
   Dim result() As String = input.Split(delimiters)
   ' result = {"Hello", "World", "OpenAI"}

3. Метод разделения с помощью StringSplitOptions:

   Dim input As String = "Hello,,World"
   Dim result() As String = input.Split(","c, StringSplitOptions.RemoveEmptyEntries)
   ' result = {"Hello", "World"}

4. Метод разделения с ограничением:

   Dim input As String = "Hello,World,OpenAI"
   Dim result() As String = input.Split(","c, 2)
   ' result = {"Hello", "World,OpenAI"}

5. Разделение по регулярному выражению:

   Dim input As String = "Hello World! How are you?"
   Dim pattern As String = "\W+" ' split on non-word characters
   Dim result() As String = Regex.Split(input, pattern)
   ' result = {"Hello", "World", "How", "are", "you"}

6. Разделить с помощью String.Split с помощью StringSplitOptions и StringSplitOptions.RemoveEmptyEntries:

   Dim input As String = "Hello,World,,OpenAI"
   Dim separators() As String = {","}
   Dim result() As String = input.Split(separators, StringSplitOptions.RemoveEmptyEntries)
   ' result = {"Hello", "World", "OpenAI"}

7. Разделить с помощью Microsoft.VisualBasic.Strings.Split:

   Dim input As String = "Hello,World,OpenAI"
   Dim result() As String = Microsoft.VisualBasic.Strings.Split(input, ",")
   ' result = {"Hello", "World", "OpenAI"}