ExtJS3 - 如何实现多表头Grid

来源：互联网发布：玩游戏手机知乎编辑：程序博客网时间：2024/06/05 14:46

ExtJS 3.x 版本并没有直接实现多表头Grid 的方式，可借助ColumnHeaderGroup插件进行实现，该插件代码已包含在项目源码包中的ux目录下。

1、引入ColumnHeaderGroup插件的css及js文件

<head><meta charset="utf-8" /><title>ColumnHeaderGroup Grid</title><link rel="stylesheet" type="text/css" href="extjs/css/ext-all.css" /><link rel="stylesheet" type="text/css" href="extjs/css/xtheme-blue.css" /><link rel="stylesheet" type="text/css" href="extjs/ux/ColumnHeaderGroup.css" /><script type="text/javascript" src="extjs/ext-base.js"></script><script type="text/javascript" src="extjs/ext-all.js"></script><script type="text/javascript" src="extjs/ux/ColumnHeaderGroup.js"></script></head>

2、创建ColumnHeaderGroup对象实例

var row = new Ext.ux.grid.ColumnHeaderGroup({rows: [[{header: "",align: "center",colspan: 1}, {header: "A",align: "center",colspan: 1}, {header: "B",align: "center",colspan: 2}, {header: "C",align: "center",colspan: 3}, {header: "D",align: "center",colspan: 2}, {header: "E",align: "center",colspan: 1}]]});

其中，rows属性是一个二维数组，每一个子项代表一行，可以指定每行包含的单元格及其所跨的列数，也可以根据自己的实际需要创建多行。

3、创建Grid实例，并使用ColumnHeaderGroup插件

var sm = new Ext.grid.CheckboxSelectionModel();var viewport = new Ext.Viewport({layout: "fit",items: [{xtype: "grid",cls: "col-grid",title: "多表头Grid",store: new Ext.data.ArrayStore({fields: ["a", "b1", "b2", "c1", "c2", "c3", "d1", "d2", "e"],data: [["a", "b-1", "b-2", "c-1", "c-2", "c-3", "d-1", "d-2", "e"],["a", "b-1", "b-2", "c-1", "c-2", "c-3", "d-1", "d-2", "e"],["a", "b-1", "b-2", "c-1", "c-2", "c-3", "d-1", "d-2", "e"]]}),sm: sm,columns: [sm, {header: "&nbsp;",dataIndex: "a",align: "center"}, {header: "B1",dataIndex: "b1",align: "center"}, {header: "B2",dataIndex: "b2",align: "center"}, {header: "C1",dataIndex: "c1",align: "center"}, {header: "C2",dataIndex: "c2",align: "center"}, {header: "C3",dataIndex: "c3",align: "center"}, {header: "D1",dataIndex: "d1",align: "center"}, {header: "D2",dataIndex: "d2",align: "center"}, {header: "&nbsp;",dataIndex: "e",align: "center"}],viewConfig: {forceFit: true},plugins: row}]});

4、如果Gird是CheckboxSelectionModel模式，那在每一行的表头都会有一个checkbox选择框，而且多表头之间参差不齐。此时可以添加额外的css样式，对跨列的表头进行美化。

td.ux-grid-hd-group-cell .x-grid3-hd-checker {display:none;}.col-grid td {-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;}

col-grid为当前Grid设置的cls值

5、最终效果如下：

*注：以上实例使用ExtJS3.4版本实现。

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