jquery implements clicking on the TreeView text parent node to expand/collapse the child nodes

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I have been a registered user for a while and have been very busy. I haven’t written an article yet. I suddenly felt that I must take some time to record and summarize something. Well, it starts here.

Today, when the customer asked to click on the parent node of the menu (implemented by TreeView), expand the node. I thought this should be a very common function, so I googled it and found that most of them are not implemented in js. Some js implementations are troublesome to write, so I might as well write one myself. It shouldn't be difficult.

The first idea is, jquery implements clicking on the TreeView text parent node to expand/collapse the child nodes_jquery , let the event numbered ' ' on the left be executed when the text is clicked. Check the source code and see that the event numbered ' ' is:
javascript:TreeView_ToggleNode(ctl00_body__menuTree_Data,0, document.getElementById('ctl00_body__menuTreen0'),' ',document.getElementById('ctl00_body__menuTreen0Nodes'))
Ok, the next step is to filter out all the parent nodes, add event processing and it will be ok. Here is the complete code:

Copy code The code is as follows: