query range in ax 2009 date function

Fist add following peace of line in init() method


criteriaApproved = this.query().dataSourceTable(tablenum(VendTrans)).addRange(fieldnum(VendTrans,Approved));

followin line in execute query()

dateQBR.value(strfmt('(CustTrans.TransDate >= %1) && (CustTrans.TransDate <= %2)', Date2StrXpp(01\01\2010), Date2StrXpp(31\10\2010)));