对于Extjs组合框，向上/向下箭头键在IE8中不起作用 [英] For Extjs combobox ,UP/DOWN arrow keys do not work in IE8

问题描述

Ext.view.BoundListKeyNav.override（{

highlightAt：function（index）{

var boundList = this.boundList;

var litem = boundList.all.item（index）;

if（litem）{

litem = litem.dom;

boundList.highlightItem （litem）;

boundList.getTargetEl（）。scrollChildIntoView（litem，true）;

combo.setValue（boundList.getNode（index）.textContent）;

}

}

}）;



使用此代码，显示内容当按下向上/向下箭头键时，在extjs中的组合框文本字段中。但这在IE8中不起作用。当我输入组合框时，它会显示搜索结果，并且只要按下向下/向上箭头键，搜索结果消失了，文本字段仍然是空白。这可能是什么原因？......谢谢

Ext.view.BoundListKeyNav.override({
highlightAt:function (index) {
var boundList = this.boundList;
var litem = boundList.all.item(index);
if (litem) {
litem = litem.dom;
boundList.highlightItem(litem);
boundList.getTargetEl().scrollChildIntoView(litem, true);
combo.setValue(boundList.getNode(index).textContent);
}
}
});

Using this code,to show the content on the combobox textfield in extjs when UP/DOWN arrow keys are pressed.But this does not work in IE8.When i type in the combobox,it shows me the search results and as soon as i press the DOWN/UP arrow key,the search results vanish away and the textfield remains blank.What could be the reason for this?......Thanks

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