Acess dataset between 2 Windows Form

[dynamic_sysop]

here's a quick example , using oledb to open an access app
in Form1 :

Imports System.Data
 
Public ds As New DataSet()
Private frm2 As New Form2()
 
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    AddOwnedForm(frm2)
    frm2.Show()
 
End Sub

in Form2 :

Imports System.Data.OleDb
 
    Private frmMain As Form1
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim constring As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\MyDb.mdb"
        frmMain = Owner '/// owner form.
 
        OpenAccess(constring)
    End Sub
 
    Public Function OpenAccess(ByVal strConnection As String, Optional ByVal strCommand As String = "SELECT * FROM Table1")
        Dim objCon As New OleDbConnection(strConnection)
        Try
            objCon.Open()
            Dim objCom As New OleDbCommand(strCommand, objCon)
            Dim objAdapt As New OleDbDataAdapter(objCom)
 
            objAdapt.Fill(frmMain.ds, "Table1")
            DataGrid1.DataSource = frmMain.ds.Tables("Table1")
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        Finally
            objCon.Close()
        End Try
 
    End Function