I helped you check the differences in ExtJS3 and ExtJS4, the main changes - focusEl has been removed from the gridView element.
In ExtJS3, focusEl is a binding in a view
<div class="x-grid3-scroller" id="ext-gen10" style="width: 298px; height: 174px; "> <div class="x-grid3-body" style="width:100px;" id="ext-gen12"> <div class="x-grid3-row x-grid3-row-first x-grid3-row-last" style="width:100px;"> <table class="x-grid3-row-table" border="0" cellspacing="0" cellpadding="0" style="width:100px;"> <tbody> <tr><td class="x-grid3-col x-grid3-cell x-grid3-td-0 x-grid3-cell-first " style="width: 100px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-0" unselectable="on">0</div></td></tr> </tbody> </table> </div> </div> <a href="#" class="x-grid3-focus" tabindex="-1" id="ext-gen13"></a> </div>
In ExtJS4, this binding does not exist
Decision
This is a small violin test that I created for you. Basically what you need to change is the following:
grid.getView().el.focus();
Instead of getting focusEl (binding), we use the whole element.
Hope this solves your problem.
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