Pass DataTable from Class to Main Form - vb.net

Question

I am stupidly new to VB.. I have my Class (dalv1) where all my functions are stored and my Main Form.
Code is as follows:
Public Sub getCustomerDetails()
Try
Dim cust_dataTable As New DataTable()
Dim Connection As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source = C:\Users\Public\Documents\VP - A1\Database\Database.mdb"
Dim SQL As String = ("SELECT * FROM tblCustomers")
Dim dataAdapter As New OleDbDataAdapter(SQL, Connection)
dataAdapter.Fill(cust_dataTable)
dataAdapter.Dispose()
Catch ex As Exception
MsgBox("ERROR : " & ex.Message.ToString)
End Try
End Sub
I want to pass the DataTable, cust_dataTable to the Main Form so I can populate text boxes when the form loads.

Answer 1

You need to turn it into a function so that the table gets returned to the caller:
Public Function getCustomerDetails() As DataTable
Dim cust_dataTable As New DataTable()
Try
Dim Connection As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source = C:\Users\Public\Documents\VP - A1\Database\Database.mdb"
Dim SQL As String = ("SELECT * FROM tblCustomers")
Dim dataAdapter As New OleDbDataAdapter(SQL, Connection)
dataAdapter.Fill(cust_dataTable)
dataAdapter.Dispose()
Catch ex As Exception
MsgBox("ERROR : " & ex.Message.ToString)
End Try
Return cust_dataTable
End Function
You didn't share your form's code, but here is an example of how you would call it:
Private da As New dalv1
Private _MyDataTable As DataTable
Protected Overrides Sub OnLoad(ByVal e As EventArgs)
MyBase.OnLoad(e)
_MyDataTable = da.getCustomerDetails
End Sub