ASP CORE HTML Helper未设置日期的默认值

您可以尝试以下代码:

<div class="form-group">
    <label asp-for="ThrDate" class="control-label"></label>
    <input asp-for="ThrDate" class="form-control" id="date_info" type="date" asp-format="{0:yyyy-MM-dd}" />
    <span asp-validation-for="ThrDate" class="text-danger"></span>
</div>
@section Scripts{ 
<script>
$(document).ready(function () {
    var time = new Date();
    var day = ("0" + time.getDate()).slice(-2);
    var month = ("0" + (time.getMonth() + 1)).slice(-2);
    var today = time.getFullYear() + "-" + (month) + "-" + (day);
    $('#date_info').val(today);
})
</script>
}

结果:

如果你想用 datetimepicker ,您可以使用以下代码:

<div class="form-group">
<label asp-for="ThrDate" class="control-label"></label>
<div class="input-group date" id="datetimepicker1" data-target-input="nearest">
    <input class="form-control datetimepicker-input" asp-for="ThrDate" type="text" data-target="#datetimepicker1" />
    <div class="input-group-append" data-target="#datetimepicker1" data-toggle="datetimepicker">
        <div class="input-group-text"><i class="fa fa-calendar"></i></div>
    </div>
</div>
</div>
@section Scripts{
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/tempusdominus-bootstrap-4/5.0.1/js/tempusdominus-bootstrap-4.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/tempusdominus-bootstrap-4/5.0.1/css/tempusdominus-bootstrap-4.min.css" />
<script>
    $('#datetimepicker1').datetimepicker({    
        format: 'DD/MM/YYYY HH:mm',
        defaultDate: new Date(), 
    });
</script>
}

结果:

另一篇帖子给了我们答案: Set default input value Datetime.Now on create view MVC ASP.NET Core 2?

但它在评论中,所以我将在这里详细介绍。

在控制器的GET中,设置模型项的值,例如:

PostThr postThr = new PostThr { ThrDate = DateTime.Now };

return view(model);

执行此操作后,控制器中指定的值将传递给视图。不需要修改视图。

旁注:我现在似乎对值的格式有问题,但这是富裕国家的问题,或者另一个问题。

向斯蒂芬·穆克喊一声!