添加虚拟列

const gridRef = grid.getReference();
if (!gridRef) return
grid.getStore().on('beforeload', function (store, records, successful, eOpts) {
    grid.getStore().getModel().addFields([
        {
            name: 'tf_allocateAmount',
            type: 'number',
            persist: false,
            convert: function (value, obj) {
                const mainId = grid.ownerId;
                const detailVals = obj.data.xsT_cashFlowDetail || obj.data.xsT_invoicesDetail;

                let total = 0;
                Ext.each(detailVals, rec => {
                    if (gridRef && rec['tw_ownerId'] === mainId) {/*gridRef==="xsT_cashFlow-payoff-mainHD"*/
                        total += rec['tf_allocateAmount'];
                    }
                });

                return total;
            }
        }])
}, this, {single: true});


node.align = 'right'
node.renderer = cmd.fMoney
node.summaryRenderer = cmd.fMoney
// node.summaryType= function(records,a,b,c,d) {}
node.summaryType = 'sum'
retCols.push(node);