ExtJS 4.0中,如何动态改变一个rowEditor中的组件?

比如,如果一个combo选了第一项,就把同一行的另外一个组件变成datefield,如果选了第二项,就把那个组件变成textfield。

API里说是用setEditor,但参数写的是field。

我这样写的话:
[code="java"] Ext.getCmp('quote_item_grid').columns[0].setEditor(new Ext.form.field.Text({value: 3}));[/code]

报错:column.getEditor is not a function

有好多这样问的,都说用setEditor,但好像都是3.3的,4.0是不是不一样了呢?

有人说在前面加一个参数columnNumber,我试了貌似也不行,报同样的错……

你发的那个网站,我没用明白 :oops: ,没找到怎么引入ext的样式文件。
[url]%EXT_HOME%\ext-4.0.2-gpl\ext-4.0.2\examples\grid\array-grid.js[/url]在你的ext的包下面这个路径的这个文件内容换成我这个,然后你浏览array-grid.html看看。
[code="java"]
Ext.require([
'Ext.grid.*',
'Ext.data.*',
'Ext.util.*',
'Ext.state.*'
]);

Ext.onReady(function() {
Ext.QuickTips.init();

// setup the state provider, all state information will be saved to a cookie
Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));

// sample static data for the store
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']
];

/**
 * Custom function used for column renderer
 * @param {Object} val
 */
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;
}

/**
 * Custom function used for column renderer
 * @param {Object} val
 */
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;
}

var states = Ext.create('Ext.data.Store', {
fields: ['abbr', 'name'],
data : [
{"abbr":"AL", "name":"Alabama"},
{"abbr":"AK", "name":"Alaska"}
//...
]
});

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

// create the Grid
var grid = Ext.create('Ext.grid.Panel', {
    store: store,
    stateful: true,
    stateId: 'stateGrid',
    columns: [
        {
        text     : 'Company',
        flex     : 1,
        sortable : false,
        dataIndex: 'company',
        editor:{xtype:'combo',
                 store: states,
                            displayField: 'name',
                            valueField: 'abbr',
                            listeners:{
                                'change':function(ts){
                                        var text =this.value;
                                        if(text=='AL'){
                                            Ext.getCmp('dg').setEditor(new Ext.form.field.Text());
                                            }
                                        if(text=='AK'){
                                            Ext.getCmp('dg').setEditor(new Ext.form.field.Date());
                                            }
                                    }
                                }
            }
        },
        {
            id:'dg',
            text     : 'Price',
            width    : 75,
            sortable : true,
            dataIndex: 'price',
            editor:{xtype:'numberfield'}
        },
        {
            text     : 'Change',
            width    : 75,
            sortable : true,
            renderer : change,
            dataIndex: 'change'
        },
        {
            text     : '% Change',
            width    : 75,
            sortable : true,
            renderer : pctChange,
            dataIndex: 'pctChange'
        },
        {
            text     : 'Last Updated',
            width    : 85,
            sortable : true,
            renderer : Ext.util.Format.dateRenderer('m/d/Y'),
            dataIndex: 'lastChange'
        },
        {
            xtype: 'actioncolumn',
            width: 50,
            items: [{
                icon   : '../shared/icons/fam/delete.gif',  // Use a URL in the icon config
                tooltip: 'Sell stock',
                handler: function(grid, rowIndex, colIndex) {
                    var rec = store.getAt(rowIndex);
                    alert("Sell " + rec.get('company'));
                }
            }, {
                getClass: function(v, meta, rec) {          // Or return a class from a function
                    if (rec.get('change') < 0) {
                        this.items[1].tooltip = 'Hold stock';
                        return 'alert-col';
                    } else {
                        this.items[1].tooltip = 'Buy stock';
                        return 'buy-col';
                    }
                },
                handler: function(grid, rowIndex, colIndex) {
                    var rec = store.getAt(rowIndex);
                    alert((rec.get('change') < 0 ? "Hold " : "Buy ") + rec.get('company'));
                }
            }]
        }
    ],
     plugins: [ 
        Ext.create('Ext.grid.plugin.CellEditing', { 
            clicksToEdit: 1
        }) 
    ], 
    height: 350,
    width: 600,
    title: 'Array Grid',
    renderTo: 'grid-example',
    viewConfig: {
        stripeRows: true
    }
});

});

[/code]
这个做的是第一列的editor是个combo,选第一项的话,第二列的editor为文本,选第二项,第二列的editor为日期。

你的这个columns选错了吧,
应该是改变某一列的editor,比如这样:
[code="java"]{

            text     : 'Company',
            flex     : 1,
            sortable : false,
            dataIndex: 'company',
            editor:{xtype:'numberfield'}

        },
        {
            id:'dg',
            text     : 'Price',
            width    : 75,
            sortable : true,
            renderer : 'usMoney',
            dataIndex: 'price',
            editor:{xtype:'numberfield'}
        }[/code]

现在有2列,editor都是数字输入框。在第一个editor被编辑时触发事件,在事件中改变第二个editor的类型为文本输入框。
[code="java"]plugins: [
Ext.create('Ext.grid.plugin.CellEditing', {
clicksToEdit: 1,
listeners:{
'edit':function(e,s){
if(s.field=="company"){
alert(1);
Ext.getCmp('dg').setEditor(new Ext.form.field.Text({value: 3}));

                    }
                }
            }
        }) 
    ][/code]

具体的这个edit事件传进来的参数[color=red]e,s[/color]你可以查一下API中Ext.grid.plugin.CellEditing这个类的edit事件。就不一一列举了。
这里没有按照你的要求根据comboBox的选项来改变editor的类型,正好你自己练习下哈 :idea:

[code="java"]
text : 'Company',
flex : 1,
sortable : false,
dataIndex: 'company',
editor:{xtype:'combo',
store: states,
displayField: 'name',
valueField: 'abbr',
listeners:{
'change':function(ts){
var text =this.value;
if(text=='AL'){
Ext.getCmp('dg').setEditor(new Ext.form.field.Text({value: 3}));
Ext.getCmp('dg').removeListener('edit');
}

if(text=='AK'){
Ext.getCmp('dg').setEditor(new Ext.form.field.Date());
}
}
}
}
},
{
id:'dg',
text : 'Price',
width : 75,
sortable : true,
dataIndex: 'price',
editor:{xtype:'numberfield'}
}
[/code]
在combo的edit事件中改变列的editor。现在存在个问题,如果这个id为dg的列开始不是日期类型,那么editor改变为日期类型,我不知道该怎么给它格式化。。。

[code="java"]Ext.getCmp('dg').removeListener('edit'); [/code]
这句话不要。。。

图片怎么上传啊。。 :oops: 是要上传到网上图片库在给链接么。
[img]C:\Users\lenovo\Desktop\未命名.jpg[/img]
[img]C:\Users\lenovo\Desktop\未命名1.jpg[/img]

[code="java"]Ext.getCmp('dg').setEditor(new Ext.form.field.Text({value:4}));[/code]这个文本给个值。。

我发的图片能看到么?日历的效果出来了么?