FastReport 动态修改连接字符串

            Report rp = new Report();
            rp.Load(@"Print\aa.frx");
            rp.Dictionary.Connections[0].ConnectionString = "5555555";
            rp.Save(@"Print\aa.frx");//是否需要保存，未测试，请自行测试
            rp.Load(@"Print\aa.frx");
            MessageBox.Show(rp.Dictionary.Connections[0].ConnectionString);