Kendo UI Treeview当前数据源发布 [英] Kendo UI treeview current datasource post

问题描述

我需要在FTP中创建一个文件夹结构，类似于我视图中的树形结构.我想允许用户在创建文件夹之前编辑树结构.

I need to create a folder structure in FTP similar to that of the tree structure on my view. I want to allow the user to edit the tree structure before creating folders.

我有一个带有服务器绑定的TreeView:

I have a TreeView with server binding:

@model IEnumerable<TreeViewItemModel>
@(Html.Kendo().TreeView()
          .Name("PipelineStructureMajor")
          .BindTo(Model)
          .ExpandAll(true)
          .DragAndDrop(true)
          )

绑定很好.通过一些客户端重组(添加/拖动/删除某些节点)，我想将树视图(具有所有子级的根节点递归发布)到我的动作中.

The binding is fine. With some client-side restructuring (appending/dragging/removing some nodes), I want to post the treeview (root node with all its children recursively) to my action.

 public ActionResult _CreateFtp(TreeViewItemModel root)
    {
        //FTPClient in action : Parsing whole tree and converting into the folder structure

        return PartialView("_TreeMajor", <refreshed model>);
    }

在客户端，我试图警告树视图数据，它显示了根节点文本，其中项目为空.

On the Client side, I tried to alert treeview data, it shows the root node text with its Items empty.

$('#createFtpConfirmed').click(function () {

        //TreeView data
        var treeData = $("#PipelineStructureMajor").data("kendoTreeView").dataSource.data();
        alert(JSON.stringify(treeData));   

        $.ajax({
            url:'@Url.Action("_CreateFtp", "Structure")',
            data: {root: treeData},
            type:"POST",
            success: function (result, status, xhr) {
                //Doing something useful
            }
        });
    });

有没有办法做到这一点?

Is there a way to accomplish this?

推荐答案

正如我的问题所解释的，我有3个步骤:

As my question explains, I have 3 steps:

1. 服务器绑定默认树
2. 编辑节点(删除，添加，重命名节点)
3. 取回所有树视图数据(包括添加的数据)

经过 kendo文档和

After going through the kendo docs and this demo, I got the point. I have to make my tree datasource observable so as to reflect the node-changes. For this I had to use kendo-web-scripts (instead of server wrappers). So I changed my step 1 to:

1. 远程绑定默认树(以使我的dataSource可见)

我希望立即一次完全加载我的树形视图，并看到此演示，我发现treeview一次只能加载一个级别. ( UserVoice 已经排队，但剑道团队仍然忽略了它).因此，我使用了一种怪异的方式:

I want my tree view fully loaded at once remotely and seeing this demo, I figured out that treeview only allows one level to be loaded at a time. (UserVoice already queued but Kendo team still ignoring it). So I use a hacky way:

<div id="PipelineStructureMajor"></div>
<button id="createandorinsert" class="k-button hugebtn">Send</button>
<script>
$.get("../Structure/LoadTreeData", function (data) {
    var sat = new kendo.data.HierarchicalDataSource({
        data: data
    });

    var pipelinetree = $("#PipelineStructureMajor").kendoTreeView({
        dataSource: kendo.observableHierarchy(sat),
        dragDrop: true,
        select: onNodeSelect
    }).data("kendoTreeView");
});
</script>

然后我将数据发送到控制器操作，例如:

And I sent my data to the controller action like:

$('#createandorinsert').click(function (e) {

//TreeView's current datasource
var tree = $("#PipelineStructureMajor").data("kendoTreeView").dataSource.data();

    $.ajax({
        url: '../Structure/FtpCreateAndOrSync',
        type: 'POST',            
        data: {
            xmlNodes: JSON.stringify(tree)
        },
        beforeSend: function (xhr) {
            alertSpan.removeClass().addClass("loading");
        },
        success: function (result, status, xhr) {                
                alertSpan.removeClass().addClass("success");                
        },
        error: function (jqXhr, textStatus, errorThrown) {                
                alertSpan.removeClass().addClass("error");                    
        }
    });    

});

在控制器端，我将字符串json反序列化为:仅显示部分代码

And on the controller side, I Deserialized string json as: Just showing partial code

[AcceptVerbs(HttpVerbs.Post)]
    public ActionResult FtpCreateAndOrSync(string xmlNodes)
    {
       //Deserializing nodes
       var xmlNodesModels = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<IEnumerable<XmlNode>>(
                    xmlNodes).ToArray();
            ////Alternative
            //var data = JsonConvert.DeserializeObject<IEnumerable<XmlNode>>(xmlNodes);
       return Json(new { cr = createResult, dr = dbResult });
    }

希望这对某人有帮助.

这篇关于Kendo UI Treeview当前数据源发布的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！