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我有一个显示类记录的强类型 Razor 视图。这个视图显示了一个用户可以用来更新记录的表单（一个下拉菜单、几个复选框和几个文本框）。当用户通过更改控件的值来修改字段时，会立即向 Web API 发送 ajax 调用以更新该字段。以下 Ajax 调用工作正常：

$(document).ready(function () {
    $(this).on("change", function (e) {
        var editRecordURL = $("#editRecordURL").val();
        var key = $("#AccessVM_Id").val();
        var mode = $("#AccessVM_AccessMode").val();
        var failLim = $("#AccessVM_LoginFailLimit").val();
        var cap = $("#AccessVM_PwdWCap").is(':checked');
        ...
        var rec = {
            Id: key,
            AccessMode: mode,
            LoginFailLimit: failLim,
            PwdWCap: cap,
            ....
        };

        $.ajax({
            type: "PUT",
            url: editRecordURL,
            data: JSON.stringify(rec),
            contentType: 'application/json; charset=utf-8',
            success: function (msg) {
                bootbox.alert("Success: Record updated successfully!");
            },
            error: function (XMLHttpRequest, textStatus, errorThrown) {
                bootbox.alert("Error: " + errorThrown);
            }
        });
    });
});

但是，我想让这个函数更通用，这样它就可以用于其他表单（尤其是那些需要更新更多数据的表单）。理想情况下，rec 对象将像这样填充：

var rec = $("#form").serializeArray();

不幸的是，这不起作用，因为在应用后JSON.stringify()它rec不会返回预期的 JSON 字符串。相反，它会发送一系列名称/值对，如下所示：

[{"name":"__RequestVerificationToken","value":"qVedWHJ6HIrqtLJpTxp4m5D2ehZ_AdjCOvQtz4Jyzlg0cdocsWqcTCiE2jzIEB7UsJPwuSZeZF7y1GsluHNrNCDV1wrHjU1UJO5vMMGTLB41"},{"name":"AccessVM.Id","value":"1"},{"name":"AccessVM.AccessMode","value":"1"},{"name":"AccessVM.LoginFailLimit","value":"10"},{"name":"AccessVM.PwdWCap","value":"true"},{"name":"AccessVM.PwdWCap","value":"false"},{"name":"AccessVM.PwdWNum","value":"true"},{"name":"AccessVM.PwdWNum","value":"false"},{"name":"AccessVM.PwdWSC","value":"true"},{"name":"AccessVM.PwdWSC","value":"false"},{"name":"AccessVM.PwdMinLen","value":"6"},{"name":"AccessVM.PwdMaxLen","value":"25"},{"name":"AccessVM.PwdChange","value":"90"},{"name":"AccessVM.PwdPrevUsedLimit","value":"10"}]

那么我该如何解决这个问题，使字符串看起来像：

[{"AccessVM.Id": 1, "AccessVM.AccessMode": 1, "AccessVM.LoginFailLimit": 10, "AccessVM.PwdWCap": true, "AccessVM.PwdWNum": true, "AccessVM.PwdWSC": false, "AccessVM.PwdMinLen": 6, "AccessVM.PwdMaxLen": 25, "AccessVM.PwdChange": 90, "AccessVM.PwdPrevUsedLimit": 10}]

Web API 控制器：

public class PoliciesController : ApiController
{
    ....
    // PUT: api/policies/1
    [ResponseType(typeof(void))]
    public IHttpActionResult PutPolicy(int id, AccessItemViewModel polDto)
    {
        ....
    }
    ....
}

查看模型

public class PolicyViewModel
{
    public AccessItemViewModel AccessVM { get; set; }
    ....
}

public class AccessItemViewModel
{
    public int Id { get; set; }
    public int AccessMode { get; set; }  
    public int LoginFailLimit { get; set; } 
    public bool PwdWCap { get; set; }   
    ....
}

剃刀视图：

@model App.Web.ViewModels.PolicyViewModel
....
@using (Html.BeginForm("Register", "Account", FormMethod.Post, new { @class = "form-horizontal", role = "form" }))
{
    @Html.AntiForgeryToken()
    @Html.ValidationSummary("", new { @class = "text-danger" })
    <input type="hidden" id="editRecordURL" value="@Model.ExtraVM.EditRecordUrl" />
    @Html.LabelFor(m => m.AccessVM.AccessMode, new { @class = "col-xs-5" })
    @Html.HiddenFor(m => m.AccessVM.Id)
    @Html.DropDownListFor(m => m.AccessVM.AccessMode, new SelectList(Model.AccessModes, "Mode", "Description"), null, new { @class = "input-sm col-xs-7" })
    @Html.LabelFor(m => m.AccessVM.LoginFailLimit, new { @class = "col-xs-9" })
    @Html.DropDownListFor(m => m.AccessVM.LoginFailLimit, new SelectList(Model.LoginLimits, "LoginFailLimit", "Value"), null, new { @class = "input-sm col-xs-3" })
    @Html.LabelFor(m => m.AccessVM.PwdWCap, new { @class = "col-xs-11" })
    @Html.CheckBoxFor(m => m.AccessVM.PwdWCap, new { @class = "input-xs col-xs-1" })
    ....
}
4

1 回答 1

1

您将需要使用.serialize()（不是哪个不能与您的属性和.serializeArray()正确工作）并删除该选项，以便它使用默认值并且不对数据进行字符串化。Yoru 脚本应该是boolDefaultModelBindercontentTypeapplication/x-www-form-urlencoded; charset=UTF-8

$.ajax({
    type: "PUT",
    url: editRecordURL,
    data: $('form').serialize(),
    success: function (msg) {

但是，您视图中的模型是PolicyViewModel基于该模型生成的表单控件，因此该.serialize()函数将为PolicyViewModel. 这意味着您的PutPolicy方法中的模型必须匹配。该方法需要

public IHttpActionResult PutPolicy(int id, PolicyViewModel model) // not AccessItemViewModel

如果方法参数不能更改，那么您的视图需要基于AccessItemViewModel或者您需要为AccessVM属性使用部分视图，以便您生成不带“AccessVM”前缀的`name 属性。例如

_AccessVM.cshtml

@model AccessItemViewModel
@Html.HiddenFor(m => m.Id)
....

并在主视图中，使用@Html.Action()or@Html.Partial()来生成它的 html

于 2016-09-18T08:57:41.487 回答