使用百分比设置GridPannel宽度的方法（1）

Posted 周四, 07/10/2008 - 11:50 by admin

使用过Ext的Gird(网格)功能的人都知道它的功能非常强大。
也遇到过当需要将GridPanel的宽度设置为100%的时候（width:100%），
这样grid的宽度变得很长，根本就不是百分百。
查找了一下资料，发现用 bodyStyle:'width:100%' 来设置百分比就可以实现我们想要的效果。

但当我们把浏览器窗口缩小后，GridPanel的最右边被截了一部分。
其实这个也很简单，只要在浏览器窗口改变大小的时候重新设置一下GridPanel的宽度就可以解决我们的问题了。

设置 GridPanel 的 bodyStyle:'width:100%' 和浏览器窗口改变大小时的事件完成我们设置GridPanel的宽度。

演示(demo)地址在文章最后.

效果图如下：
浏览器窗口放到最大时的效果

浏览器窗口缩小后的效果

源代码包括：0003_grid_full_width_1.html

0003_grid_full_width_1.html

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>使用百分比设置GridPannel宽度的方法（1）</title>
<link rel="stylesheet" type="text/css" href="../resources/css/ext-all.css" />
<link rel="stylesheet" type="text/css" href="../examples/examples.css" />
<script type="text/javascript" src="../adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="../ext-all.js"></script>
<script type="text/javascript" src="../ext-all.js"></script>
<script type="text/javascript">
Ext.onReady(function(){

    Ext.state.Manager.setProvider(new Ext.state.CookieProvider());

    var myData = [
        ['3m Co',71.72,0.02,0.03,'9/1 12:00am'],
        ['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],
        ['Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],
        ['American Express Company',52.55,0.01,0.02,'9/1 12:00am'],
        ['American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],
        ['AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],
        ['Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],
        ['Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],
        ['Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],
        ['E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],
        ['Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],
        ['General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],
        ['General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],
        ['Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],
        ['Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],
        ['Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],
        ['International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],
        ['Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am'],
        ['JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],
        ['McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],
        ['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],
        ['Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],
        ['Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],
        ['The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],
        ['The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],
        ['The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],
        ['United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],
        ['Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],
        ['Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am']
    ];

    // example of custom renderer function
    function change(val){
        if(val > 0){
            return '<span style="color:green;">' + val + '</span>';
        }else if(val < 0){
            return '<span style="color:red;">' + val + '</span>';
        }
        return val;
    }

    // example of custom renderer function
    function pctChange(val){
        if(val > 0){
            return '<span style="color:green;">' + val + '%</span>';
        }else if(val < 0){
            return '<span style="color:red;">' + val + '%</span>';
        }
        return val;
    }

    // create the data store
    var store = new Ext.data.SimpleStore({
        fields: [
           {name: 'company'},
           {name: 'price', type: 'float'},
           {name: 'change', type: 'float'},
           {name: 'pctChange', type: 'float'},
           {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
        ]
    });
    store.loadData(myData);

    // create the Grid
    var grid = new Ext.grid.GridPanel({
        store: store,
        columns: [
            {id:'company',header: "Company", width: 160, sortable: true, dataIndex: 'company'},
            {header: "Price", width: 75, sortable: true, renderer: 'usMoney', dataIndex: 'price'},
            {header: "Change", width: 75, sortable: true, renderer: change, dataIndex: 'change'},
            {header: "% Change", width: 75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},
            {header: "Last Updated", width: 85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
        ],
        stripeRows: true,
        autoExpandColumn: 'company',
        height:350,
        bodyStyle:'width:100%',
		title:'Array Grid'
    });

    grid.render('grid-example');

    grid.getSelectionModel().selectFirstRow();
	
	window.onresize=function(){
        grid.setWidth(0);
        grid.setWidth(Ext.get("grid-example").getWidth());
};


});
</script>
</head>
<body>
<h1>使用百分比设置GridPannel宽度的方法（1）</h1>

<p>使用过Ext的Gird(网格)功能的人都知道它的功能非常强大。<br>
也遇到过当需要将GridPanel的宽度设置为100%的时候（width:100%），<br>
这样grid的宽度变得很长，根本就不是百分百。<br>
查找了一下资料，发现用 bodyStyle:'width:100%' 来设置百分比就可以实现我们想要的效果。</p>
<p>但当我们把浏览器窗口缩小后，GridPanel的最右边被截了一部分。<br>
其实这个也很简单，只要在浏览器窗口改变大小的时候重新设置一下GridPanel的宽度就可以解决我们的问题了。<br>
</p>
<p>设置 GridPanel 的 bodyStyle:'width:100%' 和 浏览器窗口改变大小时的事件 完成我们设置GridPanel的宽度。</p>
<p> </p>
<p><br />
</p>

<div id='grid-example'></div>

</body>
</html>

演示(demo)地址:
http://extjs.org.cn/extjs/mydemo/0003_grid_full_width_1.html