/** * 合并单元格 * @param {} grid 要合并单元格的grid对象 * @param {} cols 要合并哪几列 [1,2,4] */ function mergeCells(grid, cols) { var arrayTr = document.getElementById(grid.getId()+"-body").firstChild.firstChild.firstChild.getElementsByTagName('tr'); //var arrayTr = document.getElementById(grid.getId()+"-body").firstChild.nextSibling; //var arrayTr = Ext.get(grid.getId()+"-body").first().first().first().select("tr"); var trCount = arrayTr.length; var arrayTd; var td; var merge = function(rowspanObj, removeObjs) { //定义合并函数 if(rowspanObj.rowspan != 1) { arrayTd = arrayTr[rowspanObj.tr].getElementsByTagName("td"); //合并行 td = arrayTd[rowspanObj.td - 1]; td.rowSpan = rowspanObj.rowspan; td.vAlign = "middle"; Ext.each(removeObjs, function(obj) { //隐身被合并的单元格 arrayTd = arrayTr[obj.tr].getElementsByTagName("td"); arrayTd[obj.td - 1].style.display = 'none'; }); } }; var rowspanObj = {}; //要进行跨列操作的td对象{tr:1,td:2,rowspan:5} var removeObjs = []; //要进行删除的td对象[{tr:2,td:2},{tr:3,td:2}] var col; Ext.each(cols, function(colIndex) { //逐列去操作tr var rowspan = 1; var divHtml = null; //单元格内的数值 for(var i=1; i<trCount; i++) { //i=0表示表头等没用的行 arrayTd = arrayTr[i].getElementsByTagName("td"); var cold = 0; Ext.each(arrayTd, function(Td) { //获取RowNumber列和check列 if(Td.getAttribute("class").indexOf("x-grid-cell-special") != -1) cold++; }); col = colIndex + cold; //跳过RowNumber列和check列 if(!divHtml) { divHtml = arrayTd[col-1].innerHTML; rowspanObj = {tr: i, td: col, rowspan: rowspan} }else{ var cellText = arrayTd[col-1].innerHTML; var addf = function() { rowspanObj["rowspan"] = rowspanObj["rowspan"] + 1; removeObjs.push({tr: i,td: col}); if(i == trCount-1) merge(rowspanObj, removeObjs);//执行合并函数 }; var mergef = function() { merge(rowspanObj, removeObjs);//执行合并函数 divHtml = cellText; rowspanObj = {tr: i, td: col, rowspan: rowspan} removeObjs = []; }; if(cellText == divHtml) { if(colIndex != 1) { var leftDisplay=arrayTd[col-2].style.display;//判断左边单元格值是否已display if(leftDisplay == 'none') addf(); else mergef(); } else addf(); } else mergef(); } } }); };