无法更新extjs gridpanel的工具栏

Question

In extjs 2, I have a function, which returns one of two arrays, which is used on page load for

// onload
var grid = Ext.grid.GridPanel({
  ...
  tbar : getBar()
  ...
});

...

// later in a function
grid.tbar = getBar()
grid.getView().refresh()

Is there something else I need to refresh? Or is there a fundamental difference in setting the tbar at load time-- tbar : getBar() --versus setting it later-- grid.tbar = getBar() ?

Answer 1

If you want get your grid's toolbar you're better using

grid.getTopToolbar();

and then to refresh the layout of the toolbar you need to use

grid.getTopToolbar().doLayout();

The doLayout(); will tell ExtJS to redraw the toolbar's layout with any changes that you have made to it.

Hope this helps

Answer 2

Since doLayout isn't available in 2.2, I was recommended to just add all possible buttons/widgets to the toolbar and show/hide them individually. This seems to work suitably.