EasyUi combotree implements dynamic loading of tree nodes

easyui 1.2.4 example does not give an example of dynamically loading tree nodes, so I have to study it myself.

It can be seen from the source code that combotree inherits the two controls combo and tree, so when expanding its subordinate child nodes, the url of the options option of the tree built in combotree is reset to a dynamic selection value. The url, the code is as follows:

$('#cc').combotree({
url:"treejson.aspx?act=allregion&parentid=0", 
onBeforeExpand:function(node){
$('#cc').combotree("tree").tree("options").url= "treejson.aspx?act=allregion&parentid=" + node.id;
}
});

The above content is the knowledge about EasyUi combotree implemented by the editor to dynamically load tree nodes. I hope it will be helpful to everyone!

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