To get a Value from String Edit in another by init method

//To get a Value from String Edit in another by init method

public void init()
{
    super();
    _FormFirstTable = element.args().record();
    FormSecondTable_ds.query().dataSourceTable(Tablenum(FormSecondTable)).addRange(fieldNum(FormSecondTable,SecondForm)).value(SysQuery::value(_FormFirstTable.FirstForm));
}