open form through code

write the below code in class or form(A)

   Args                        args;
    FormRun                     formRun;
    super();

    args = new args();
    args.name(formstr(FormBName));
    args.record(tablename);// pasing record
    formrun = classfactory.formrunclass(args);
    formrun.init();
    formrun.run();
    formrun.wait();

write below code in init method of formB

     super();
    if(element.args().caller() && element.args().caller().name() == formStr(FormA))
    {
        tablebuffer = element.args().record();      
        Table_ds.query().dataSourceNo(1).addRange(fieldnum(table,field)).value(queryValue(table.field));
     
    }