有效日期的 Asp.net MVC DateTime 错误

Posted 2023-04-13

【中文标题】有效日期的 Asp.net MVC DateTime 错误

【英文标题】：Asp.net MVC DateTime error on valid dates

【发布时间】：2018-01-18 11:16:14

【问题描述】：

我正在制作一个可以创建活动的日历。使用 jquery 日期时间选择器时，没有实时验证错误，但是当我按下创建时，会出现验证错误，它指出；

值“我填写的日期”对于 StartDateTime 无效。

我认为在我按下创建后它会尝试以不同的格式进行验证。我不知道是哪一个以及如何检查。

这里有与创建它相关的代码。

事件模型：

    public class Event

    public int Id  get; set; 
    public string Subject  get; set; 
    public string Description  get; set; 
    public DateTime StartDateTime  get; set; 
    public DateTime EndDateTime  get; set; 
    public string ThemeColor  get; set; 
    public bool IsFullDay  get; set; 

创建页面：

@model BudoschoolTonNeuhaus.Models.Event

@
    ViewBag.Title = "Create";
    Layout = "~/Views/Shared/_Admin_Layout.cshtml";

<div class="container">
    <h2>Create</h2>

    @using (Html.BeginForm())
    
        @Html.AntiForgeryToken()

        <div class="form-horizontal">
            <h4>Event</h4>
            <hr />
            @Html.ValidationSummary(true, "", new  @class = "text-danger" )
            <div class="form-group">
                @Html.LabelFor(model => model.Subject, htmlAttributes: new  @class = "control-label col-md-2" )
                <div class="col-md-10">
                    @Html.EditorFor(model => model.Subject, new  htmlAttributes = new  @class = "form-control"  )
                    @Html.ValidationMessageFor(model => model.Subject, "", new  @class = "text-danger" )
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.Description, htmlAttributes: new  @class = "control-label col-md-2" )
                <div class="col-md-10">
                    @Html.EditorFor(model => model.Description, new  htmlAttributes = new  @class = "form-control"  )
                    @Html.ValidationMessageFor(model => model.Description, "", new  @class = "text-danger" )
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.StartDateTime, htmlAttributes: new  @class = "control-label col-md-2" )
                <div class="col-md-10">
                    @Html.EditorFor(model => model.StartDateTime, new  htmlAttributes = new  @class = "form-control datepicker"  )
                    @Html.ValidationMessageFor(model => model.StartDateTime, "", new  @class = "text-danger" )
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.EndDateTime, htmlAttributes: new  @class = "control-label col-md-2" )
                <div class="col-md-10">
                    @Html.EditorFor(model => model.EndDateTime, new  htmlAttributes = new  @class = "form-control datepicker"  )
                    @Html.ValidationMessageFor(model => model.EndDateTime, "", new  @class = "text-danger" )
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.ThemeColor, htmlAttributes: new  @class = "control-label col-md-2" )
                <div class="col-md-10">
                    @Html.EditorFor(model => model.ThemeColor, new  htmlAttributes = new  @class = "form-control"  )
                    @Html.ValidationMessageFor(model => model.ThemeColor, "", new  @class = "text-danger" )
                </div>
            </div>

            <div class="form-group">
                @Html.LabelFor(model => model.IsFullDay, htmlAttributes: new  @class = "control-label col-md-2" )
                <div class="col-md-10">
                    <div class="checkbox">
                        @Html.EditorFor(model => model.IsFullDay)
                        @Html.ValidationMessageFor(model => model.IsFullDay, "", new  @class = "text-danger" )
                    </div>
                </div>
            </div>


            <div class="form-group">
                <div class="col-md-offset-2 col-md-10">
                    <input type="submit" value="Create" class="btn btn-default" />
                </div>
            </div>
        </div>
    

    <div>
        @Html.ActionLink("Back to List", "AdminIndex")
    </div>
</div>

@section Scripts
    <script>
        $('.datepicker').datepicker( );
    </script>
 

感谢您的帮助

【问题讨论】：

您发送的日期是什么格式？该错误指出 C# 无法将其解析为 DateTime

我认为这与文化和日期选择器问题有关。错误状态DateTime value can't beparsed，哪些值导致错误？

The value 'the date i filled in' is not valid for StartDateTime. 从字符串转换为日期时间时出现此错误

@RoryMcCrossan 我发送的格式是 mm-dd-yyyy

@Diceble 默认情况下，您的站点文化遵循您机器上的区域设置配置。如果文化不同于 datepicker 使用的默认文化，那么您需要使用自定义输入格式并覆盖默认验证模式。

【参考方案1】：

// http://docs.jquery.com/Plugins/Validation/Methods/date
date: function( value, element ) 
return this.optional(element) || !/Invalid|NaN/.test(new Date(value).toString());

在 scripts/jquery.validate.js 的第 1026 行 (?) 放置一个断点 我将其编辑为：

    date: function (value, element) 
    return this.optional(element) || moment(value, "DD-MMM-YYYY").isValid();
    ,

我做的另一件事是将 DataAnnotations 放在 POCO 类中： [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "0:dd-MMM-yyyy")]

$("input[type='datetime']").datepicker( dateFormat: "dd-M-yy" );

可能有用