我想知道如何将项目插入到已分类的树库中,如果在extjs中有一种方法可以执行此操作。然后,我希望将项目显示在树形图表中排序,尽管树形图中可能已经有一些节点;
所以,这个问题可能是,如何根据我店内的内容重新加载它所显示的内容。让我说清楚,我不想从某些数据源重新加载商店。我想重新加载面板以反映商店中包含的内容。最好的方法是什么?
答案 0 :(得分:0)
没有真正的默认方式来执行此操作。您需要做的是在页面上创建一个使用与树相同模型的空存储,这样的事情非常简单:
var mySortStore = Ext.create("Ext.data.Store", {
model: "MyTreeStore",
data: []
});
然后,当您将节点添加到树中时,请改用此函数:
function addNodeSorted(node, childToBeAdded){
//clear the store from previous additions
mySortStore.removeAll();
//remove old sorters if they are dynamically changing
mySortStore.sort();
//add the node into the tree
node.appendChild(childToBeAdded);
var cn = node.childNodes,
n;
//remove all nodes from their parent and add them to the store
while ((n = cn[0])) {
mySortStore.add(node.removeChild(n));
}
//then sort the store like you would normally do in extjs, what kind of sorting you want is up to you
mySortStore.sort('height', 'ASC');//this is just an example
//now add them back into the tree in correct order
mySortStore.each(function(record){
node.appendChild(record);
});
}