ExtJS的错误嵌套网格：空

无法读取属性“isGroupHeader”每当我扩大或网格嵌套我得到以下错误崩溃行：ExtJS的错误嵌套网格：空

"Uncaught TypeError: Cannot read property 'isGroupHeader' of null"

谷歌给了我这个URL，但它不似乎在5.1中工作，任何想法如何将其转换为解决5.1问题？

http://blog.kondratev.pro/2014/08/getting-rid-of-annoying-uncaught.html

下面是错误小提琴例如： https://fiddle.sencha.com/#fiddle/g5b

2015-04-18 Alophind

这是因为网格单元或单元格编辑器事件（鼠标悬停，点击或其他）在另一个网格的上下文（父母或祖先被触发）。在这里，您可以看到如何停止从冒泡的事件：

Ext.require(['Nested.view.NestedGrid'], function() { 
    var nGrid = Ext.create({ 
     type: 'nestedgrid', 
     renderTo: div 
    }); 

    // prevent bubbling of the events 
    nGrid.getEl().swallowEvent([ 
     'mousedown', 'mouseup', 'click', 
     'contextmenu', 'mouseover', 'mouseout', 
     'dblclick', 'mousemove' 
    ]); 

});

来源

2015-07-24 18:20:48

谢谢。这个解决方案适合我:) –

查找EXT-ALL-debug.js源误差的方法，然后创建一个新的JS进入“EXT-所有*的js。”加载后位置，我的版本是：Ext JS 6.2.0.981

核心代码是：Object。 prototype。功能和xxx != null

后缀代码：

Ext.event.publisher.Dom.prototype.unsubscribe = function (element, eventName, delegated, capture) { 
    var me = this, 
     captureSubscribers, bubbleSubscribers, subscribers, id; 
    if (delegated && !me.directEvents[eventName]) { 
     captureSubscribers = me.captureSubscribers; 
     bubbleSubscribers = me.bubbleSubscribers; 
     subscribers = capture ? captureSubscribers : bubbleSubscribers; 
     if (subscribers != null && subscribers[eventName]) { 
      --subscribers[eventName]; 
     } 
     if (me != null && bubbleSubscribers != null && captureSubscribers != null && !me.handles[eventName] && !bubbleSubscribers[eventName] && !captureSubscribers[eventName]) { 
      // decremented subscribers back to 0 - and the event is not in "handledEvents" 
      // no longer need to listen at the dom level 
      this.removeDelegatedListener(eventName); 
     } 
    } else { 
     subscribers = capture ? me.directCaptureSubscribers : me.directSubscribers; 
     id = element.id; 
     subscribers = subscribers[eventName]; 
     if (subscribers[id]) { 
      --subscribers[id]; 
     } 
     if (!subscribers[id]) { 
      // no more direct subscribers for this element/id/capture, so we can safely 
      // remove the dom listener 
      delete subscribers[id]; 
      me.removeDirectListener(eventName, element, capture); 
     } 
    } 
};

来源

2017-04-28 03:51:39 nvnpnco

Ext.define('MyApp.overrides.GridColumn', { 
    override: 'Ext.grid.column.Column', 

    show: function() { 
     if (!this.getRefOwner()) { 
      return; 
     } 
     this.callParent(arguments); 
    } 
});

下面是这个解决办法，我使用。

来源

2018-02-27 21:58:41 zeke

ExtJS的错误嵌套网格：空

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