Ext grid中在条件下显示或不显示某些列

//#region当合同资金类型为付款时,列表显示开户银行和账号和流程状态列,否则不显示-jun-2011-6-20-15:45-
        for (var i = 0; i < finance_check_actualCm.getColumnCount(); i++) {
            if ((finance_check_actualCm.getDataIndex(i) == "BANK" || finance_check_actualCm.getDataIndex(i) == "ACCOUNT"||finance_check_actualCm.getDataIndex(i) == "STATE") && finance_check_HtProperty == "收款") {
                finance_check_actualCm.setHidden(i, true);
                finance_check_actualCm.config[i].fixed = true;
            } else {
                finance_check_actualCm.setHidden(i, false);
            }
        } //endregion当合同资金类型为付款时,列表显示开户银行和账号列,否则不显示