Sending results from a class to other class - mysql

Question

How can i send results from a class to other class, the results it from my mysql results.
example first class it databaseConnection and i want to send the result from select method to other class.
Here my code:
Dim data As ArrayList
Public Function selectAll() As ArrayList
Dim mySelectQuery As String = "SELECT * FROM users"
Dim myConnection As New MySqlConnection(connectionString)
Dim myCommand As New MySqlCommand(mySelectQuery, myConnection)
myConnection.Open()
Dim myReader As MySqlDataReader
myReader = myCommand.ExecuteReader()
' Always call Read before accessing data.
data = myReader
' always call Close when done reading.
myReader.Close()
' Close the connection when done with it.
myConnection.Close()
End Function
i updated a code to look more clear
and receiver Method look like this.
Private Sub home_Load(sender As Object, e As EventArgs) Handles MyBase.Load
db = New db()
Dim r = db.selectAll()
MsgBox("It work" & db.selectAll().ToString())
End Sub

Answer 1

You can do this numerous ways.
However, i would probably output the results to a variable in the first function. Then simply access the variable as needed from the second.
Example:
in first method:
Dim list As New List(Of String)
While myReader.Read()
list.add(myreader.GetString(0))
End While
second:
Dim listTransfer as list(Of String)
Foreach ele as String in classname.list ' Replace classname '
listTransfer.add(ele)
Next