Fill Datagridview in each new identical TabPages

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VB

DataGridView

TabControl

VS2012

I have TabControl with 1 TabPages and contains DataGridView. I create TabPages2 from TabPages1 with code :

Dim Frm As New TabFormPage
Dim MoreTabs As TabPage = Frm.TabPage1
Dim i As Integer
For i = 1 To TabControl1.TabPages.Count
    MoreTabs.Text = "TabPage" & i + 1
Next i
TabControl1.Controls.Add(MoreTabs)
Frm.Dispose()

TabPages2 Controls identical to TabPages1
If I fill DataGridView with BackgroundWorker in TabPages1 , it was working . But if I fill DataGridView in every New TabPages ( eg TabPages2 ) from different sources , it was not working (DataGridView in TabPages2/each New TabPages is empty/nothing) . It always fills Tabpages1 DataGridView
How to fill every DataGridView in every New TabPages with identical controls ? Here's my code to fill DataGridview :

Private Sub BackgroundWorker1_DoWork(sender As Object, e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
        MyConnection = New System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + FPathTab + ";Extended Properties=Excel 12.0;")
        MyCommand = New System.Data.OleDb.OleDbDataAdapter("select * from [" & CSheetTab1 & "]'", MyConnection)

        DtSet = New System.Data.DataSet
        DtSet.Clear()
        MyCommand.Fill(DtSet)
End Sub
Private Sub BackgroundWorker1_RunWorkerCompleted(sender As Object, e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles BackgroundWorker1.RunWorkerCompleted
        DataGridView1.DataSource = DtSet.Tables(0)
        dv = DtSet.Tables(0).DefaultView
        MaxRecords = DtSet.Tables(0).Rows.Count
        MyConnection.Close()
        DataGridView1.Columns("F20").Visible = False
        DataGridView1.Columns("F21").Visible = False
        DataGridView1.Columns("F22").Visible = False
End Sub

Thanks for your help