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        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
                string connstr = @"data source=localhost\V2B;user id=sa;password=moori64;integrated security=false;"
              + "persist security info=false;initial catalog=v2b_sql";

            SqlConnection conn = new SqlConnection(connstr);

            conn.Open();

            SqlDataAdapter adap = new SqlDataAdapter("select  * from Mannschaft", conn);
            DataTable tab = new DataTable();
            adap.Fill(tab);

            listBox1.DataSource = tab;