How to add an ExtJs component at a specific position (index)?

问题

I have a ToolBar with some components (TextFields and Buttons) and I would like to dynamically add a component (TextField, for example) before the other components.

I tried tbBar.add(myComponent); without success.

Any idea?

回答1:

You can use Ext.container.AbstractContainer.insert:

tbBar.insert(0, myComponent);

回答2:

As an additional information, you can use "Ext.container.AbstractContainer.container.items.indexOf" to get an index of a specific item in your container.

var index = container.items.indexOf(component);
container.insert(index, newComponent);

来源：https://stackoverflow.com/questions/6629363/how-to-add-an-extjs-component-at-a-specific-position-index