upload Image in Gridview vb.net

Import System.IO

Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click
        Try
            Dim s As String = FileUpload1.PostedFile.FileName
            Dim s1 As String = Path.GetFileName(s)
            FileUpload1.PostedFile.SaveAs(Server.MapPath("img/" + s1))
            Dim s2 As String = "../img/" + s1
            da = New SqlDataAdapter("insert into move(title,director)values('" + TextBox1.Text + "','" + s2 + "')", cn)
            ds = New DataSet()
            da.Fill(ds)
            GridView2.DataSource = ds
            GridView2.DataBind()
        Catch ex As Exception
            Response.Write(ex.Message)
        End Try
    End Sub