“What could be causing the issue of newly added components not appearing on an extjs panel after removing other components?”

Using ExtJs 6 classic, I have a situation where I am dealing with an Ext.panel.Panel that contains dynamically created child Panels and containers. What I do is save references to these containers and remove them from the parent Panel (this) utilizing the code snippet below:

    if (this.myChildPanels.length > 0) {
        for (var i = this.myChildPanels.length - 1; i >= 0; i--) {
            this.remove(this.myChildPanels[i], true);
        }
        this.remove(this.queryById('finalPanel'), true);
        this.myChildPanels= [];
    }

As expected, the child panels disappear and are no longer displayed.

However, after removing these components, when I try to add new containers back to the parent panel (this), the new panels do not show up.

    this.add(Ext.create('Ext.container.Container', { 
          width: '200px',
          height: '400px',
          layout: {
             type: 'fit'
          },
          items: [ {
             xtype: 'label',
             text: 'Some stuff'
          }]
    ));

The parent Panel is set to use a fit layout. Are there any specific methods that I should call on the parent Panel after removing the components and before adding new ones? The issue seems to be with re-adding components after removal, specifically when triggered by a button press event.

Answer №1

Utilize the removeAll() method to eliminate all offspring elements within your section. Following the addition of new components, make sure to invoke the updateLayout function. If this resolution proves ineffective, kindly present a fiddle demo replicating your issue for further assistance.

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