building cbo boxes

what am I doing wrong?

Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
OleDbConnection1.Open()
OleDbDataAdapter1.SelectCommand.CommandText = "SELECT Location, HotelID FROM Hotel"
OleDbDataAdapter1.SelectCommand.ExecuteNonQuery()
Do

ComboBox1.Items.Add(OleDbDataAdapter1.SelectCommand.CommandText)

Loop
OleDbConnection1.Close()
End Sub

Quote:

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what am I doing wrong

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Calling ExecuteNonQuery to execute the Select statement (which is a query).
Adding the same value to the combobox each time.
There is an endless loop.