private void Button1_Click(object sender, EventArgs e)
    {
        using (var cn = new OdbcConnection("Driver={Microsoft Access Driver (*.mdb, *.accdb)};Dbq=./Sample.mdb"))
        {
            cn.Open();
            OdbcDataAdapter adapter = new OdbcDataAdapter("select * from StudentInformation", cn);
            DataSet dataSet = new DataSet();
            adapter.Fill(dataSet);

            var imageByteArr = dataSet.Tables[0].Rows[0].ItemArray[1];
            var imageConverter = new ImageConverter();
            var bitmap = imageConverter.ConvertFrom(null, CultureInfo.CurrentCulture, imageByteArr);
            this.BackgroundImage = bitmap as Image;
        }
    }