在对于变量使用还有些疑问,现在想继承一个组件,在按钮中处理这个新组件的属性,可是总是遇到 undefined 实在是对变量作用域掌握的不透彻啊,希望大家帮帮忙吧。 怎么能在这个handler中得到myflag的值呢?Ext.MyPanel=Ext.extend(Ext.Panel ,{
title:"My Panel",
myflag: 0,
buttons : [new Ext.Button({
text : 'button',
handler : function(button) {
var b = myflag;
b = b + 1;
...........
},
scope : this
})]
});
Ext.reg('mypanel', Ext.MyPanel); Ext.onReady(function(){
new Ext.MyPanel( {myflag : 2}).render(Ext.getBody());
});
title:"My Panel",
myflag: 0,
buttons : [new Ext.Button({
text : 'button',
handler : function(button) {
var b = myflag;
b = b + 1;
...........
},
scope : this
})]
});
Ext.reg('mypanel', Ext.MyPanel); Ext.onReady(function(){
new Ext.MyPanel( {myflag : 2}).render(Ext.getBody());
});
title:"My Panel",
myflag:"tetttttetttttt",
constructor : function(config){
config = config || {};
config.buttons = [
new Ext.Button({
text : 'button',
handler : function(button) {
var b = this.myflag;
b = b + "1";
...........
},
scope : this
})
];
Ext.MyPanel.superclass.constructor.call(this, config);
}
});
Ext.reg('mypanel', Ext.MyPanel);
Ext.onReady(function(){
new Ext.MyPanel( {myflag : 'something' }).render(Ext.getBody());
});
title:"My Panel",
initComponent:function(){
buttons=[new Ext.Button({
text:'button',
handler:function(button){
var b=myflag;
b=b+1;
}
})];
Ext.MyPanel.superclass.initComponent.call(this);
}
});
Ext.reg('mypanel', Ext.MyPanel);
Ext.onReady(function(){
new Ext.MyPanel( {myflag : 'something' }).render(Ext.getBody());
});