Javascript 如何在 ExtJS 4 中获取子元素
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How to get child element in ExtJS 4
提问by Kunal
How to get all the child elements or id of a Panel in ExtJS 4?
如何在 ExtJS 4 中获取 Panel 的所有子元素或 id？
回答by Zango
I wrote that function for you. I think it will help you.
我为你写了那个函数。我想它会帮助你。
function getAllChildren (panel) {
/*Get children of passed panel or an empty array if it doesn't have thems.*/
var children = panel.items ? panel.items.items : [];
/*For each child get their children and concatenate to result.*/
Ext.each(children, function (child) {
children = children.concat(getAllChildren(child));
})
return children;
}
EDITThis will return ids of children. USES PREVIOUS FUNCTION - getAllChilden
编辑这将返回儿童的 ID。使用以前的功能 - getAllChilden
function getAllChildenIds(panel) {
//*Get all child items. \*/
var children = getAllChilden(panel);
//*Replace items with their ids.\*/
for (var i=0, l=children.length; i < l; i++) {
children[i] = children[i].getId();
}
return children;
}
回答by user463226
Just call query() on your panel which will return an array of all child elements which match an optional selector. i.e. panel.query()
只需在面板上调用 query() ，它将返回与可选选择器匹配的所有子元素的数组。即 panel.query()
