dynatree

问题 In this component http://wwwendt.de/tech/dynatree/index.html under 5.4 Loading child nodes on demand ('lazy loading') it seems that the only way to load the tree nodes in a lazy manner is to grab them from web service. What if I want to grab the nodes from a data structure? such as: onLazyRead: function(dtnode){ dtnode.appendAjax({ //url: "sample-data2.json" //grab the nodes here from array }); } Any advice? Another question: when onLazyRead is executed, does the whole tree get re-rendered

问题 http://wwwendt.de/tech/dynatree/index.html I would like to clarify the following: when addChild is invoked - does the whole tree gets re-rendered or just the nodes modified (added nodes and the nodes that have new children)? I am getting 2 conflicting pieces of info: Lazy Loading in dynatree it says that only affected nodes will get re-rendered Dynatree slow when dynamically loaded with 100+ nodes here it says that it does get re-rendered every time addChild is used Perhaps, I am missing

问题 I followed this Recursive Hierarchical Joins in C# and LINQ post to implement recursive join extension to show a tree view data in my application. As i have 15000 tree nodes, the jQuery DynaTree at client side preparation takes lot of time (50 Secs) in buggy browser I.E 7&8 To avoid this i decided to load only one level initially, then load other children on demand (Lazy Loading). But i could not see the effect in setting depth in recursive join. Even i specify, it prepare all nodes. public

问题 I am trying to get the dynatree control to work in the Hottowel viewmodel, based on this fiddle, http://jsfiddle.net/EZgNs var ViewModel = function() { var self = this; self.initialized = ko.observable(false); self.items = ko.observableArray(); // Use JSFiddle echo to simulate an AJAX service (function() { $.ajax({ url:"/echo/json/", data:data, type:"POST", success:function(data) { // Map the returned JSON to the View Model ko.mapping.fromJS(data, {}, self.items); self.initialized(true); } })

问题 I have Dynatree running well on my page. I am using an initAjax to get the structure. When I generate my json I include "select": true where appropriate to select check-boxes. Most (all) of the check-boxes are at a depth of three levels down from the root. I would like to expand the parents of the selected nodes so the user can see the selected check-boxes when the page loads. I think I need to do something on the onPostInit function with getSelectedNodes, but I can not nail down the code?? I

问题 I've seen this question already, and I've tried the solution given (use tree.reload()), but it's not working for me. I have a tree that's initialized on doc ready using initAjax(), and I'm trying to reload the tree, using different values, on the change of a select input. Basically this: $(document).ready(function(){ // global variables var myVal = 'initial value'; // initialize tree $('#tree').dynatree({ persist: false, initAjax: { url: 'getMyStuff.cfc', data: { myParam: myVal } }, ... more

问题 Has anybody got any examples of using the Dynatree plugin with MVC? I have been wrestling with it without much progress. I have an action method which returns a JsonResult (but selects all columns in the underlying table, not sure if this is the problem) and in my initajax call , all I'm doing is calling this method. If it's not too much trouble, I am looking for sample View and Controller action methods. Thanks in advance for any help 回答1: You need to create an object to serialize the nodes

问题 I would like to start using Dynatree on my page, however I will probably need searching my tree by name. Do you know maybe how to do this? 回答1: I needed to have not only matching nodes, but also the whole paths to these nodes. I wrote this functionality and it works for me. Modifications for library: var clear = true; DynaTreeNode.prototype.search = function(pattern){ if(pattern.length < 1 && !clear){ clear = true; this.visit(function(node){ node.expand(true); node.li.hidden = false; node

问题 How do I speed it up? I get the results from JSON web service (lightning fast). Adding nodes to the tree using something like parentNode.addChild({ key: key, title: value, addClass: cssClass }); Unfortunately, a tree with 100+ elements takes 1.5 minutes to load. I am disappointed...is it not made to be used with that many nodes? Anything I can do at this point aside from switching to another component? Thanks! 回答1: This benchmark shows that it is loads pretty fast: http://wwwendt.de/tech

问题 Behavior: The Rails app serves up all assets just fine except for those of the dynatree plugin, i.e. my trees don't have folder icons, lines, etc. Firebug reports 404 errors when referencing the asset: NetworkError: 404 Not Found - http://<production-host>/assets/dynatree/skin/icons-bf773ee37964ed4c51011537fefa5047.gif I've verified the asset does exist in that directory with that precompiled name. Because I'm using multiple virtual hosts, I think the URL for the asset should be including the