在ExtJS 4.2中,只要将“beforeRender”事件放入Ext.form.Panel定义中,并创建该定义的实例,面板的 Headers 就会消失 . 有没有办法可以覆盖框架功能,使 Headers (包含我的 Headers 标签)显示出来?不确定这是否有所不同,但我在视口中使用“边框”布局 .
Panel Header (with title) is missing:
Ext.define('App.view.module1.Activity1', {
extend: 'Ext.form.Panel',
xtype: 'view-module1-activity1',
title: 'this header does not show up',
beforeRender: function() {
},
});
Panel Header (with title) shows up:
Ext.define('App.view.module1.Activity1', {
extend: 'Ext.form.Panel',
xtype: 'view-module1-activity1',
title: 'this header does show up',
//beforeRender: function() {
//},
});
我仔细检查了 Headers 是否在那里,但只是隐藏或者它根本不存在 . 这是后者 . 这是渲染 Headers 时div的样子 . 此HTML显示在实际视图div标签下 . 当 Headers 丢失时,由于具有“beforeRender”事件,此HTML块根本不会显示 .
<div class="x-panel-header x-header x-header-horizontal x-docked x-unselectable x-panel-header-default x-horizontal x-panel-header-horizontal x-panel-header-default-horizontal x-top x-panel-header-top x-panel-header-default-top x-docked-top x-panel-header-docked-top x-panel-header-default-docked-top" id="view-module1-activity1-1046_header" style="right: auto; left: 0px; top: 0px; width: 803px;">
<div id="view-module1-activity1-1046_header-body" class="x-header-body x-panel-header-body x-panel-header-body-default x-panel-header-body-horizontal x-panel-header-body-default-horizontal x-panel-header-body-top x-panel-header-body-default-top x-panel-header-body-docked-top x-panel-header-body-default-docked-top x-box-layout-ct x-panel-header-body-default-horizontal x-panel-header-body-default-top x-panel-header-body-default-docked-top" style="width: 791px;">
<div id="view-module1-activity1-1046_header-innerCt" class="x-box-inner " role="presentation" style="width: 791px; height: 16px;">
<div id="view-module1-activity1-1046_header-targetEl" class="x-box-target" style="width: 791px;">
<div class="x-component x-header-text-container x-panel-header-text-container x-panel-header-text-container-default x-box-item x-component-default" unselectable="on" id="view-module1-activity1-1046_header_hd" style="right: auto; left: 0px; top: 0px; margin: 0px; width: 791px;"><span id="view-module1-activity1-1046_header_hd-textEl" class="x-header-text x-panel-header-text x-panel-header-text-default" unselectable="on">this header does show up</span>
</div>
</div>
</div>
</div>
</div>
2 回答
两件事情 . 首先,在函数后面有一个额外的逗号 . 其次,
beforeRender
需要callParent()
您好,你可以这样做: