javascript - Error adding and removing content to tabPanels - ExtJs -

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i have web app built using extjs framework.

i have tree in west panel, , in center panel tabpanel. when click on of nodes on tree in west panel attempts add form on center tabpanel, following code called:

var center = ext.getcmp("center-panel");  var existingpanel = center.get(panelid); if (existingpanel) {     center.setactivetab(existingpanel); } else {      var activetab = center.getactivetab();      if (!opennew && activetab) {         var removed = center.remove(activetab, true);     }          center.add(c);         center.setactivetab(panelid);         center.dolayout();  }

this retrieves current component, , checks see if tab attempting load exists, if exist activates tab, otherwise attempt add new one. opennew s flag passed in state whether should opened in new tab (for example if user ctrl+clicks node on tree).

without using opennew functionality (e.g. 1 tab) form works correctly, , can navigate between nodes tabs being removed/re-added correctly.

however, if ctrl+click node open second tab, tab opens @ first, there 2 tabs, when select node (so should remove added second tab , replace new tab new node) closes second tab fails add new tab.

i can't see reason behind fien adding/removing tabs when there single tab.

there error in firebug, doesn't offer help:

uncaught exception: [exception... "could not convert javascript argument arg 0 [nsidom3node.comparedocumentposition]"  nsresult: "0x80570009 (ns_error_xpc_bad_convert_js)"  location: "js frame :: /ext/ext-3.1.1/adapter/ext/ext-base-debug.js?d=1066331810 :: <top_level> :: line 1900"  data: no]

-----------update:--------------

it seems correlate dolayout() call - if put dolayout() call directly after remove() call, doesnt fat add() call, , if put after .add() call half loads new tab stops before completing.

if have dolayout() call after both, works little better, , can have 2 functioning tabs, when tried add third tab displays same behaviour above, , closes third tab , doesnt repopen new one..

i have resolved issue - problem formpanels adding, whilst panels had unique ids had not thought check ids of other components within form (as jad suggests in comments), , forms had "fieldsets" defined static ids, removing resolved problems.

i tested problem in chrome using developer tools , found stack trace provided lot more useful error provided firebug, using both on!


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