Question

我正在使用免费的Kendo网页控件。之前我在几个地方使用了网格视图，并决定使用弹出式样式编辑我当前的项目。

我的大部分都在工作。我有三个用于类别，银行帐户和收款人的组合框，当我编辑现有项目时，传回我的MVC操作的模型对象中包含正确的值。但是，当我单击“创建”按钮时，三个组合框值将作为null返回给控制器。

以下是此视图的CSHTML代码：

@using System
@using System.Linq

@{
    ViewBag.Title = "Transactions";
}

@section Head
{
    <link href="~/Content/kendo/kendo.common.min.css" rel="stylesheet" />
    <link href="~/Content/kendo/kendo.default.min.css" rel="stylesheet" />
    <script src="~/Scripts/kendo/kendo.web.min.js"> </script>
}

@section featured
{
    <section class="featured">
        <div class="content-wrapper">
            <hgroup class="title">
                <h1>@ViewBag.Title</h1>
            </hgroup>
        </div>
    </section>
}

<div id="grid"></div>

<script>
    $(function() {
        $("#grid").kendoGrid({
            height: 350,
            toolbar: [{ name: "create", text: "Create New Transaction" }],
            columns:
            [
                { field: "Date", width: "100px", template: '#= kendo.toString(Date,"MM/dd/yyyy") #' },
                { field: "Amount", format: "{0:c}", width: "100px" },
                { field: "Category", width: "80px", editor: categoryDropDownEditor, template: "#=Category.Name#" },
                { field: "BankAccount", title: "Account", width: "80px", editor: bankAccountDropDownEditor, template: "#=BankAccount.Name#" },
                { field: "Payee", width: "80px", editor: payeeDropDownEditor, template: "#=Payee.Name#" },
                { command: ["edit", "destroy"], title: "&nbsp;", width: "160px" }
            ],
            editable: { mode: "popup", confirmation: "Are you sure you want to delete this transaction?" },
            pageable:
            {
                refresh: true,
                pageSizes: true
            },
            sortable: true,
            filterable: false,
            dataSource:
            {
                serverPaging: true,
                serverFiltering: true,
                serverSorting: true,
                pageSize: 7,
                schema:
                {
                    data: "Data",
                    total: "Total",
                    model:
                    {
                        id: "Id",
                        fields:
                        {
                            Id: { editable: false, nullable: true },
                            Date: { type: "Date" },
                            Amount: { type: "number", validation: { required: true, min: 0 } },
                            Category: { validation: { required: true } },
                            BankAccount: { validation: { required: true } },
                            Payee: { validation: { required: true } },
                            Note: { validation: { required: false } }
                        }
                    }
                },
                batch: false,
                transport:
                {
                    create:
                    {
                        url: "@Url.Action("Create", "Transaction")",
                        contentType: "application/json",
                        type: "POST"
                    },
                    read:
                    {
                        url: "@Url.Action("Read", "Transaction")",
                        contentType: "application/json",
                        type: "POST"
                    },
                    update:
                    {
                        url: "@Url.Action("Update", "Transaction")",
                        contentType: "application/json",
                        type: "POST"
                    },
                    destroy:
                    {
                        url: "@Url.Action("Delete", "Transaction")",
                        contentType: "application/json",
                        type: "POST"
                    },
                    parameterMap: function(data)
                    {
                        return JSON.stringify(data);
                    }
                }
            }
        });

        function categoryDropDownEditor(container, options)
        {
            $('<input required data-text-field="Name" data-value-field="Id" data-bind="value:' + options.field + '"/>')
                .appendTo(container)
                .kendoDropDownList(
                    {
                        autoBind: true,
                        dataValueFileld: "Id",
                        dataTextField: "Name",
                        dataSource:
                        {
                            type: "json",
                            transport: { read: "@Url.Action("GetCategories", "Transaction")" }
                        }
                    });
        }

        function bankAccountDropDownEditor(container, options)
        {
            $('<input required data-text-field="Name" data-value-field="Id" data-bind="value:' + options.field + '"/>')
                .appendTo(container)
                .kendoDropDownList(
                    {
                        autoBind: true,
                        dataValueFileld: "Id",
                        dataTextField: "Name",
                        dataSource:
                        {
                            type: "json",
                            transport: { read: "@Url.Action("GetBankAccounts", "Transaction")" }
                        }
                    });
        }

        function payeeDropDownEditor(container, options)
        {
            $('<input required data-text-field="Name" data-value-field="Id" data-bind="value:' + options.field + '"/>')
                .appendTo(container)
                .kendoDropDownList(
                    {
                        autoBind: true,
                        dataValueFileld: "Id",
                        dataTextField: "Name",
                        dataSource:
                        {
                            type: "json",
                            transport: { read: "@Url.Action("GetPayees", "Transaction")" }
                        }
                    });
        }
    });
</script>

绑定到kendo组合框必须正常工作，否则编辑也会失败。我能想到的只是对象没有正确创建。此外，它默认选择组合框中的第一个项目，但即便如此，也不会绑定值。

以下是我的创建和更新操作的代码：

    [HttpPost]
    public ActionResult Create(TransactionModel transactionModel)
    {
        var transaction = _moneyBO.CreateTransaction();

        Mapper.Map(transactionModel, transaction);

        _moneyBO.UpdateTransaction(transaction);

        return Json(Mapper.Map<TransactionModel>(transaction));
    }

    public ActionResult Update(TransactionModel transactionModel)
    {
        var transaction = _moneyBO.Transactions.SingleOrDefault(x => x.Id == transactionModel.Id);

        if (transaction == null)
            return View("NotFound");

        Mapper.Map(transactionModel, transaction);

        _moneyBO.UpdateTransaction(transaction);

        return Json(Mapper.Map<TransactionModel>(transaction));
    }

我没有找到使用弹出式自定义编辑的好例子。剑道网站上的示例内联工作，但如果您将示例更改为弹出窗口则不起作用。

Answer 1

我有同样的问题。请写，如果你解决了，请我发现，Kendo认为“null”（默认为int？）是ObservableObject（在初始化ComboBox时），这就是为什么它不能被解析为“number”。如果编辑项目（不是创建），则值id不是“null”，模型bindind工作正常

Answer 2

不确定这是否是此处唯一的问题，但在您的代码示例中，您的下拉列表的初始化看起来并不完全正确。您已撰写dataValueFileld，应为dataValueField

kendoDropDownList({
    autoBind: true,
    dataValueFileld: "Id",          <-- Incorrect spelling
    dataTextField: "Name",
    dataSource:
    {
        type: "json",
        transport: { read: "@Url.Action("GetPayees", "Transaction")" }
    }
});

使用ComboBox创建Kendo.Web网格弹出窗口

2 个答案: