ExtJS Grid Sync returns null 到服务器

Question

当我想要同步 ExtJS 网格中的更改时，我在存储同步方法的回发中遇到了值问题。

如您在此 fiddle 摘录中所见，正在进行调用，但它们不包含任何数据，导致 Web 中出现空引用 API

632 200 HTTP    localhost:52543 /api/Tasks/Delete?_dc=1442568648737 0   no-cache; Expires: -1       chrome:822280           
635 200 HTTP    localhost:52543 /api/Tasks/Update?_dc=1442568658100 0   no-cache; Expires: -1       chrome:822280

商店定义如下：

Ext.define('SchedulerApp.store.UnplannedTaskStore', {
extend: 'Ext.data.Store',
model: 'UnplannedTask',
autosync: false,
autoLoad: true,
proxy: {
    type: 'ajax',
    api: {
        read: '/api/Tasks/Get',
        add: '/api/Tasks/Add',
        update: '/api/Tasks/Update',
        destroy: '/api/Tasks/Delete'
    },
    reader: {
        rootProperty: 'data',
        totalProperty: 'total'
    },
    writer: {
        type: 'json',
        root: 'data',
        writeAllFields: true,
        encode: true
    }
},
listeners: {
    load: function (sender, node, records) {
        Ext.each(records, function (record, index) {
            console.log(record);
        }, this);
    },
    remove: function (sender, node, records) {
        sender.sync();
    },
    edit: function (sender, node, records) {
        sender.sync();
    },
    update: function (sender, node, records) {
        sender.sync();
    }
}
});

这是模型：

Ext.define('UnplannedTask', {
extend: 'Sch.model.Event',
fields: [
    { name: 'Importance', type: 'float' },
    { name: 'Category', type: 'string' },
    { name: 'TaskNo', type: 'float' }
]
});

这并不重要，但这是我的 .NET 代码中的内容：

[System.Web.Http.HttpGet]
    public async Task<dynamic> Get(string page, string start, string limit)
    {
        // Get items from database with request information from the Kendo Grid Control
        PagingResult<TaskViewModel> tasks = await this.Worker.GetPagedTasksAsync(int.Parse(page), int.Parse(limit), null, null);

        // Map them to store objects
        var convertedTasks = new SchedulerTasksViewModel()
        {
            total = tasks.Count,
            data = tasks.Items.Select(x => new SchedulerTask()
            {
                Importance = x.Importance,
                Category = x.Category,
                TaskNo = x.TaskNumber
            }).ToArray()
        };

        var response = Request.CreateResponse(HttpStatusCode.OK, convertedTasks);
        return response;
    }

    [System.Web.Http.HttpPost]
    public async Task<dynamic> Add(SchedulerTask data)
    {         
        var response = Request.CreateResponse(HttpStatusCode.OK);
        return response;
    }

    [System.Web.Http.HttpPost]
    public async Task<dynamic> Update(SchedulerTask data)
    {
        var response = Request.CreateResponse(HttpStatusCode.OK);
        return response;
    }

    [System.Web.Http.HttpPost]
    public async Task<dynamic> Delete(SchedulerTask data)
    {
        var response = Request.CreateResponse(HttpStatusCode.OK);
        return response;
    }

关于我在这里遗漏的任何想法？

Answer 1

看来作者和WebAPI/MVC模型绑定过程不是很好配合。

改作者后：

writer: {
    type: 'json',
    root: 'data',
    writeAllFields: true,
    encode: true
}

对此：

writer: {
        type: 'json',
        writeAllFields: true
    }

...数据现在通过 POST 请求传输：

{"Category":"hy","Importance":10,"TaskNo":6,"Id":"UnplannedTask-3","StartDate":null,"EndDate":null,"Cls":"","Name":""}

因为我更熟悉 ASP.NET MVC 和 Web API，所以我选择这个选项，因为我可以完全控制服务器上发布的数据会发生什么。

ExtJS Grid Sync returns null 到服务器

ExtJS Grid Sync returns null to the server

c#

grid

extjs

sync

asp.net-web-api