MiniUI合并单元格

function onload(e){
     var grid = e.sender;
     var len = grid.data.length;
     var data= grid.data;
     var i=0,num=1;
     var marges = [];
     for(i;i<len;i++){
         if(i==len-1){
          var k=i+1-num;
          marges.push({ rowIndex: k, columnIndex: 1, rowSpan: num, colSpan: 1 });
           grid.mergeCells(marges);
           continue;
         }
         if(grid.data[i].deptName == grid.data[i+1].deptName){
                num++;  
           }
         if( grid.data[i].deptName != grid.data[i+1].deptName){
            var k=i+1-num; 
            marges.push({ rowIndex: k, columnIndex: 1, rowSpan: num, colSpan: 1 });
            num=1;
          }
         grid.mergeCells(marges);
    }
    
}