过滤datagridview以显示所有数据

Question

我目前有一个组合框，选中时会显示每辆车的数据，这是我想要的，但是如何让它再次显示所有数据？

这是代码

Private Sub ComboBox2_SelectionChangeCommitted(sender As Object, e As EventArgs) Handles ComboBox2.SelectionChangeCommitted

    If cnn.State = System.Data.ConnectionState.Closed Then
        cnn.Open()
    End If
    Dim sqlquery As String = "select vehiclereg,datereported,defects1,repaired1,defects2,repaired2,defects3,repaired3,datefixed1,datefixed2,datefixed3 from vehicledefects WHERE vehiclereg like '" & Me.ComboBox2.Text & "%'"

    Dim sqlcommand As New OleDbCommand
    Dim sqladapter As New OleDbDataAdapter
    Dim table As New DataTable
    With sqlcommand
        .CommandText = sqlquery
        .Connection = cnn
        .ExecuteNonQuery()
    End With
    With sqladapter
        .SelectCommand = sqlcommand
        .Fill(table)
    End With

    Dim ds As New DataSet
    sqladapter.Fill(ds, "VehicleDefects")
    DataGridView1.DataSource = ds.Tables(0)
    cnn.Close()

End Sub