我发现问题的原因。

原因：当我们使用相同的 id '，然后新添加的组件将被添加到面板的顶部。

修复：使用 itemId 而不是 id ，同时将面板中添加相同的组件。

希望这将是有用的对于某人。

I have a window with panel in inside the window. I add components to the panel dynamically. These components are in 'hbox' layout so that they are arranged horizontally. On click of a button i will add one more row of similar components in 'hbox' layout to the panel. Here the problem is that i want to add the second row below the first row, but the following code adds the components to the top of the panel.

panel.add(items);  #items is the group of comboboxes in hbox layout
panel.doLayout();

Any ideas to solve this problem? so that i can add second row of components below the first row.

Extjs Version is 3.4

I found the cause of the problem.

Cause: when we add components with same 'id' to a panel, then the newly added component will get added to the top of the panel.

Fix: Use 'itemId' instead of 'id' while adding same component to the panel.

Hope this will be useful for someone.