easyui datagrid 根据指定列自动合并行

一、以考核组成员字段为例，判断成员都是系统测试，并且问题类别，问题属性，问题描述值一样，便合并。第3、4行两个成员名一样但和1、2两行不一样，所以3、4行合并但不与1、2行合并。效果如下

二、代码如下

$(function () {
    init_datagrid();
});
function init_datagrid() {
    var arr_columns = assemble_dg_columns();
    $("#dg").datagrid({
        toolbar: "#tb",
    	url:"jee/VAssessEvaluationSummaryC/listAllVassessEvaluationSummary",
        pagination: true,
        pageList: [50, 100, 200, 500],
        pageSize: 100,
        rownumbers: true,
        nowrap: false,
        loadMsg: "正在加载数据",
        remoteSort: true,
        columns: [arr_columns],
        idField: "id",
        singleSelect: true,
        selectOnCheck: true,
        checkOnSelect: true,
	    sortName : "createtime",
	    sortOrder : "desc",
        emptyMsg: "列表为空",
        onLoadSuccess: onLoadSuccess_dg,
    });
}
//页面显示信息
function assemble_dg_columns() {
    var arr = new Array();
    arr.push({"field": "ck", checkbox: true,"hidden": false});
    arr.push({"field": "id", "title": "id", "width": "1%", "align": "center", "hidden": true});
    arr.push({"field": "find_date", "title": "发现日期", "width": "9%", "align": "center","sortable": true});
    arr.push({"field": "question_type", "title": "问题类别", "width": "7%", "align": "center"});
    arr.push({"field": "question_property", "title": "问题属性", "width": "9%", "align": "center"});
    arr.push({"field": "content", "title": "问题描述", "width": "18%", "align": "center"});
    arr.push({"field": "question_evalstandard", "title": "评价标准", "width": "14%", "align": "center"});
    arr.push({"field": "name_org", "title": "单位", "width": "6%", "align": "center"});
    arr.push({"field": "postduty_name", "title": "岗位", "width": "6%", "align": "center"});
    arr.push({"field": "soleduty_type_label", "title": "专职", "width": "6%", "align": "center"});
    arr.push({"field": "username", "title": "被考核人员", "width": "7%", "align": "center"});
    arr.push({"field": "performance", "title": "扣分值", "width": "6%", "align": "center","sortable": true});
    arr.push({"field": "createname", "title": "考核组成员", "width": "7%", "align": "center"});
    return arr;
}
//datagrid加载完数据的回调函数
function onLoadSuccess_dg(data) {
    autoMergeCells("dg",['question_type','question_property','content'],"createname"); //三个参数分别为：表格id，要合并字段的数组，判断字段（不一样则不合并）
}
//自动合并单元格
function autoMergeCells(table_id,field_arr,judge){
    var rows = $("#"+table_id).datagrid("getRows");
    if(NULL(field_arr)||NULL(rows)){
        return;
    }
    for (var i = 1; i < rows.length; i++) {
        for (var k = 0; k < field_arr.length; k++) {
            var field = field_arr[k]; //要排序的字段
            if(rows[i][field] == rows[i-1][field]){ //相邻的上下两行
                var rowspan = 2;
                for (var j = 2; i-j >= 0; j++) { //判断上下多行内容一样
                    if(rows[i][field] != rows[i-j][field]){
                        break;
                    }else{
                    	if(NOTNULL(judge)){
                    		if(rows[i][judge] != rows[i-j][judge]){
                                break;
                            }
                        }
                        rowspan = j+1;
                    }
                }
                $("#"+table_id).datagrid('mergeCells',{ //合并
                    index: i-rowspan+1,
                    field: field,
                    rowspan: rowspan
                });
            }
        }
    }
}
function NOTNULL(obj) {
    if (typeof (obj) == "undefined" || obj === "" || obj == null || obj == "null" ) {
        return false;
    }
    return true;
}
function NULL(obj) {
    if ( typeof (obj) == "undefined" || obj === "" || obj == null || obj == "null") {
        return true;
    }
    return false;
}

注：合并完后如果浏览器窗口变化表格高度变小，可以在合并后调用fixRowHeight方法，固定列高度。

$("#dg").datagrid("fixRowHeight");