extjs grid 헤더 통합 및 하단 합계 추가.

그리드 사용중 헤더 통합, 하단에 합계를 노출해야할 업무가 있다.

features에 ftype을 summary로 해서 통계 기능을 이용하면 된다.

기본적으로 sum, max, min, average, count를 제공한다.

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//commify는 0,000 포맷으로 변환해주는 펑션 function summaryRenderer(value, summaryData, dataIndex) {     if(Number(value) > 0) value = commify(Number(value));     return value+ ' 명'; }   grid = Ext.create('Ext.grid.Panel', {     store : store,     stateful : false,     collapsible : false,     multiSelect : false,     stateId : 'stateGrid',     disableSelection : true,     loadMask : true,     features: [{         ftype: 'summary'     }],     columns : Ext.create('Ext.grid.header.Container', {         items : [             {                 text : '단위지역',  width : 140,    align :  'center',  sortable : false,   dataIndex : 'UNIT_AREA',                 summaryType: 'sum',                 summaryRenderer: function(value, summaryData, dataIndex) {                     return '합계';                 }             },             {                 text : '인구수',       width : 130,    align : 'center',   sortable : false,   dataIndex : 'TPPCN',                 // 컬럼 값                     renderer: function(value, metaData, record, rowIdx, colIdx, store, view){                     return value;                     },                     xtype: 'numbercolumn', format:'0,000',                     summaryType: 'sum',                     summaryRenderer: summaryRenderer                 },                 { text : '성별',                     columns: [                             {                                 text     : '남성',    width    : 90,  align : 'center',   sortable : false,   dataIndex: 'MPPCN',                                 xtype: 'numbercolumn', format:'0,000',                                 summaryType: 'sum',                                 summaryRenderer: summaryRenderer                             },                             {                                 text     : '여성',    width    : 90,  align : 'center',   sortable : false,   dataIndex: 'FPPCN',                                 xtype: 'numbercolumn', format:'0,000',                                 summaryType: 'sum',                                 summaryRenderer: summaryRenderer                             },                         ]                     }                 ],         sortable : false     }),     listeners: {         itemdblclick: {             fn: function(grid, selRow, selHtml){                 // your codes...             }         }     }     autoHeight: true,     width : 1025,     renderTo : 'grid',     viewConfig : {         stripeRows : true,         enableTextSelection : false     } });