结合HTML来理解，
比较容易。
<!DOCTYPE html>
<html>
<head>
<title>ExtJs</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<link rel="stylesheet" type="text/css" href="ExtJs/packages/ext-theme-crisp/build/resources/ext-theme-crisp-all.css">
<script type="text/javascript" src="ExtJs/ext-all.js"></script>
<script type="text/javascript" src="ExtJs/bootstrap.js"></script>
<script type="text/javascript" src="ExtJs/packages/ext-theme-crisp/build/ext-theme-crisp.js"></script>
<script type="text/javascript">
Ext.onReady(function() {
Ext.QuickTips.init();
var testForm = new Ext.form.Panel({
title: 'Ext.form.field.TextAreaSample',
bodyStyle: 'padding: 5 5 5 5',
frame: true,
height: 150,
width: 250,
renderTo: 'formArea',
items: [{
xtype: 'textarea',
fieldLabel: 'memo',
id: 'memo',
labelSeparator: ':',
labelWidth: 60,
width: 200
}],
buttons: [{text: 'ok', handler: showValue}]
});
var loginForm = new Ext.form.Panel({
title: 'Ext.form.field.Text Sample',
bodyStyle: 'padding: 5 5 5 5',
frame: true,
height: 150,
width: 550,
renderTo: 'form',
defaultType: 'textfield',
defaults: {
labelSeparator: ':',
labelWidth: 150,
width: 500,
allowBlank: false,
labelAlign: 'left',
msgTarget: 'side'
},
items: [{
fieldLabel: 'username',
name: 'userName',
selectOnFocus: true,
regex: /^([\w]+)(.[\w+]+)*@([\w-]+\.){1,5}([A-Za-z]){2,4}$/,
regexText: 'format error'
}, {
name: 'password',
fieldLabel: 'password',
inputType: 'password'
}],
buttons: [{
text: 'login',
handler: function() {
loginForm.form.setValues({userName: 'user@com', password: '123456'});
}
}]
});
var numberForm = new Ext.form.FormPanel({
title: 'Ext.form.field.Number.Sample',
bodyStyle: 'padding: 5 5 5 5',
renderTo: 'numberForm',
frame: true,
height: 350,
width: 550,
defaultType: 'numberfield',
defaults: {
labelSeparator: ':',
labelWidth: 80,
width: 200,
labelAlign: 'left',
msgTarget: 'side'
},
items: [{
fieldLabel: 'Int',
hideTrigger: true,
allowDecimals: false,
nanText: 'input valid number.'
}, {
fieldLabel: 'Float',
decimalPrecision: 2,
allowDecimals: true,
nanText: 'input valid number.'
}, {
fieldLabel: 'Limit number',
baseChars: '12345'
},{
fieldLabel: 'Limit number',
maxValue: 100,
minValue: 50
}]
});
function showValue(){
var memo = testForm.getForm().findField('memo');
alert(memo.getValue());
};
});
</script>
</head>
<body>
<div id='form'></div>
<div id='formArea'></div>
<div id='numberForm'></div>
<div id='errorMsg'></div>
</body>
</html>
时间： 2024-10-02 23:06:25