我对extjs很新，并且遇到麻烦
我正在使用我的应用程序的browser-layout示例
我想尝试添加form grid 我定义了一个新类，但是当我调用我的表单网格时，我得到了这个错误
未捕获的TypeError：无法调用未定义的方法'insert'
这是我的代码：
Ext.define('Ext.app.myFormGrid', {
extend: 'Ext.grid.Panel',
alias: 'widget.formgrid ',
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'],
['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']
],
ds: 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' },
// Rating dependent upon performance 0 = best, 2 = worst
{name: 'rating', type: 'int', convert: function (value, record) {
var pct = record.get('pctChange');
if (pct < 0) return 2;
if (pct < 1) return 1;
return 0;
}
}
],
data: this.myData
}),
change : function (val) {
if (val > 0) {
return '<span style="color:green;">' + val + '</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '</span>';
}
return val;
},
pctChange: function (val) {
if (val > 0) {
return '<span style="color:green;">' + val + '%</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '%</span>';
}
return val;
},
rating: function (v) {
if (v == 0) return "A";
if (v == 1) return "B";
if (v == 2) return "C";
},
initComponent: function () {
var gridForm = Ext.create('Ext.form.Panel', {
id: 'company-form',
frame: true,
title: 'Company data',
bodyPadding: 5,
width: 750,
layout: 'column', // Specifies that the items will now be arranged in columns
fieldDefaults: {
labelAlign: 'left',
msgTarget: 'side'
},
items: [{
columnWidth: 0.60,
xtype: 'gridpanel',
store: this.ds,
height: 400,
title: 'Company Data',
columns: [
{
id: 'company',
text: 'Company',
flex: 1,
sortable: true,
dataIndex: 'company'
},
{
text: 'Price',
width: 75,
sortable: true,
dataIndex: 'price'
},
{
text: 'Change',
width: 75,
sortable: true,
renderer: this.change,
dataIndex: 'change'
},
{
text: '% Change',
width: 75,
sortable: true,
renderer: this.pctChange,
dataIndex: 'pctChange'
},
{
text: 'Last Updated',
width: 85,
sortable: true,
renderer: Ext.util.Format.dateRenderer('m/d/Y'),
dataIndex: 'lastChange'
},
{
text: 'Rating',
width: 30,
sortable: true,
renderer: this.rating,
dataIndex: 'rating'
}
],
listeners: {
selectionchange: function (model, records) {
if (records[0]) {
this.up('form').getForm().loadRecord(records[0]);
}
}
}
}, {
columnWidth: 0.4,
margin: '0 0 0 10',
xtype: 'fieldset',
title: 'Company details',
defaults: {
width: 240,
labelWidth: 90
},
defaultType: 'textfield',
items: [{
fieldLabel: 'Name',
name: 'company'
}, {
fieldLabel: 'Price',
name: 'price'
}, {
fieldLabel: '% Change',
name: 'pctChange'
}, {
xtype: 'datefield',
fieldLabel: 'Last Updated',
name: 'lastChange'
}, {
xtype: 'radiogroup',
fieldLabel: 'Rating',
columns: 3,
defaults: {
name: 'rating' //Each radio has the same name so the browser will make sure only one is checked at once
},
items: [{
inputValue: '0',
boxLabel: 'A'
}, {
inputValue: '1',
boxLabel: 'B'
}, {
inputValue: '2',
boxLabel: 'C'
}]
}]
}],
//renderTo: bd
});
//gridForm.child('gridpanel').getSelectionModel().select(0);
},
});
然后在我的主文件中，我创建了表单网格并将其添加到我的tabpanel：
...
var myPanel = Ext.create('Ext.app.myFormGrid',{title : 'panel 2',height:250});
...
xtype : 'tabpanel',
...
感谢您的时间和帮助
答案 0 :(得分：8)
如果定义组件的initComponent函数而不在其中调用this.callParent(arguments);，也会出现此错误。
显然，情况并非如此，只是将其指向其他人。
答案 1 :(得分：1)
好的，
首先，你需要定义一个类，在这个类中，你将把“var formGrid”放在示例中，只有那个。所有其他东西，myData和逻辑将在一个单独的文件中。然后你会在项目中说“创建”你定义的类。因此，并非所有来自示例的数据都将在类（定义）中，而只是具有网格的面板。我试试这个，它适合我。
这里：第一个文件（类）
Ext.define("app.formGrid",{
extend:"Ext.form.Panel",
id: 'company-form',
frame: true,
title: 'Company data',
bodyPadding: 5,
width: 750,
layout: 'column', // Specifies that the items will now be arranged in columns
fieldDefaults: {
labelAlign: 'left',
msgTarget: 'side'
},
items: [{
columnWidth: 0.60,
xtype: 'gridpanel',
store: ds,
height: 400,
title:'Company Data',
columns: [
{
id :'company',
text : 'Company',
flex: 1,
sortable : true,
dataIndex: 'company'
},
{
text : 'Price',
width : 75,
sortable : true,
dataIndex: 'price'
},
{
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'
},
{
text: 'Rating',
width: 30,
sortable: true,
renderer: rating,
dataIndex: 'rating'
}
],
listeners: {
selectionchange: function(model, records) {
if (records[0]) {
this.up('form').getForm().loadRecord(records[0]);
}
}
}
}, {
columnWidth: 0.4,
margin: '0 0 0 10',
xtype: 'fieldset',
title:'Company details',
defaults: {
width: 240,
labelWidth: 90
},
defaultType: 'textfield',
items: [{
fieldLabel: 'Name',
name: 'company'
},{
fieldLabel: 'Price',
name: 'price'
},{
fieldLabel: '% Change',
name: 'pctChange'
},{
xtype: 'datefield',
fieldLabel: 'Last Updated',
name: 'lastChange'
}, {
xtype: 'radiogroup',
fieldLabel: 'Rating',
columns: 3,
defaults: {
name: 'rating' //Each radio has the same name so the browser will make sure only one is checked at once
},
items: [{
inputValue: '0',
boxLabel: 'A'
}, {
inputValue: '1',
boxLabel: 'B'
}, {
inputValue: '2',
boxLabel: 'C'
}]
}]
}],
});
第二个文件（代码的其余部分）
Ext.QuickTips.init();
var bd = Ext.getBody();
// 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']
];
var ds = 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'},
// Rating dependent upon performance 0 = best, 2 = worst
{name: 'rating', type: 'int', convert: function(value, record) {
var pct = record.get('pctChange');
if (pct < 0) return 2;
if (pct < 1) return 1;
return 0;
}}
],
data: myData
});
// 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;
}
// render rating as "A", "B" or "C" depending upon numeric value.
function rating(v) {
if (v == 0) return "A";
if (v == 1) return "B";
if (v == 2) return "C";
}
bd.createChild({tag: 'h2', html: 'Using a Grid with a Form'});
/*
* Here is where we create the Form
*/
gridForm.child('gridpanel').getSelectionModel().select(0);
和主视图中的Ext.create： ...
items:[Ext.create("app.formGrid",{
})]
只是为了解释我之前为什么要这样做：HERE!
II. Naming Conventions
1) Classes
Classes that are not distributed by Sencha should never use Ext as the top-level namespace.