datepicker bootstrap 问题，总是设置属性 input-validation-error，我不想要求

Question

我在 aspnet 核心项目中遇到日期选择器 bootstrap 的问题。

我使用日期选择器 bootstrap v.1.6.4，问题是，日期选择器总是必需的，但我不希望它被要求。

我的视图模型.cs

namespace VOICE.Users
{
    public class UserViewModel
    {
        public string Id { get; set; }
        public DateTime DateCreation { get; set; }
        ....//other properties
    }
}

我的视图 .cshtml

@model VOICE.Users.UserViewModel
.....//html tags

        <div class="form-group" id="data_1">
            <label>Date</label>
            <div class="input-group date">
                <span class="input-group-addon">
                    <i class="fa fa-calendar"></i>
                </span>
                <input asp-for="DateCreation" class="form-control">
            </div>
        </div>

    ....


@section Styles {
    <link href="~/lib/bootstrap-datepicker/dist/css/bootstrap-datepicker3.css" rel="stylesheet" />
}


@section Scripts {
    <script src="/lib/jquery-validation/dist/jquery.validate.js"></script>
    <script src="/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.js"></script>
    <script src="~/lib/bootstrap-datepicker/dist/js/bootstrap-datepicker.min.js"></script>
    <script src="~/lib/bootstrap-datepicker/dist/locales/bootstrap-datepicker.pt.min.js"></script>

    <script type="text/javascript">
        $(document).ready(function () {

            $('#data_1 .input-group.date').datepicker({
                language: "pt",
                todayHighlight: true,
                todayBtn: "linked",
                keyboardNavigation: false,
                forceParse: false,
                calendarWeeks: true,
                autoclose: true
            });
        });
    </script>
    }

当页面加载时，我在网页中有这个

<input class="form-control" type="datetime" data-val="true" data-val-required="The DateCreation field is required." id="DateCreation" name="DateCreation" value="">

当我点击提交按钮时，日期选择器现在处于必需模式，我有这个

<input class="form-control input-validation-error" type="datetime" data-val="true" data-val-required="The DateCreation field is required." id="DateCreation" name="DateCreation" value="" aria-required="true" aria-describedby="DateCreation-error" aria-invalid="true">

如何防止需要数据选择器？我尝试删除属性 data-val-required 但没有成功，问题是添加到 class.

的 input-validation-error

此致。

乔丽妮丝

Answer 1

基于答案 here (go give them the up votes if this is correct). The DateTime needs to be explicitly set as nullable，因为它是值类型。所以以下应该有效：

 public Nullable<DateTime> DateCreation { get; set; }

或

 public DateTime? DateCreation { get; set; }

datepicker bootstrap 问题，总是设置属性 input-validation-error，我不想要求

datepicker bootstrap issue, always set the attribute input-validation-error, I don´t want required

javascript

validation

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required