我正在使用数据类型。模型中的Date属性和视图中的EditorFor。这是工作在Internet Explorer 8和Internet Explorer 9,但在谷歌Chrome浏览器显示日期选择器,而不是显示值,它只是显示“月/日/年”在褪色的灰色文本。
为什么谷歌Chrome浏览器不显示该值?
模型:
[DataType(DataType.Date)]
public Nullable<System.DateTime> EstPurchaseDate { get; set; }
观点:
<td class="fieldLabel">Est. Pur. Date</td>
<td class="field">@Html.EditorFor(m=>m.EstPurchaseDate)</td>
在MVC5.2中,添加“日期”。到~/Views/Shared/EditorTemplates文件夹:
@model DateTime?
@{
IDictionary<string, object> htmlAttributes;
object objAttributes;
if (ViewData.TryGetValue("htmlAttributes", out objAttributes))
{
htmlAttributes = objAttributes as IDictionary<string, object> ?? HtmlHelper.AnonymousObjectToHtmlAttributes(objAttributes);
}
else
{
htmlAttributes = new RouteValueDictionary();
}
htmlAttributes.Add("type", "date");
String format = (Request.UserAgent != null && Request.UserAgent.Contains("Chrome")) ? "{0:yyyy-MM-dd}" : "{0:d}";
@Html.TextBox("", Model, format, htmlAttributes)
}
我仍然有一个问题,它传递格式yyyy-MM-dd,但我通过更改Date.cshtml绕过了它:
@model DateTime?
@{
string date = string.Empty;
if (Model != null)
{
date = string.Format("{0}-{1}-{2}", Model.Value.Year, Model.Value.Month, Model.Value.Day);
}
@Html.TextBox(string.Empty, date, new { @class = "datefield", type = "date" })
}
在MVC5.2中,添加“日期”。到~/Views/Shared/EditorTemplates文件夹:
@model DateTime?
@{
IDictionary<string, object> htmlAttributes;
object objAttributes;
if (ViewData.TryGetValue("htmlAttributes", out objAttributes))
{
htmlAttributes = objAttributes as IDictionary<string, object> ?? HtmlHelper.AnonymousObjectToHtmlAttributes(objAttributes);
}
else
{
htmlAttributes = new RouteValueDictionary();
}
htmlAttributes.Add("type", "date");
String format = (Request.UserAgent != null && Request.UserAgent.Contains("Chrome")) ? "{0:yyyy-MM-dd}" : "{0:d}";
@Html.TextBox("", Model, format, htmlAttributes)
}
如果您需要控制日期的格式(换句话说,不只是yyyy-mm-dd格式是可接受的),另一种解决方案可能是添加一个string类型的helper属性,并向该属性添加一个日期验证器,并在UI上绑定到该属性。
[Display(Name = "Due date")]
[Required]
[AllowHtml]
[DateValidation]
public string DueDateString { get; set; }
public DateTime? DueDate
{
get
{
return string.IsNullOrEmpty(DueDateString) ? (DateTime?)null : DateTime.Parse(DueDateString);
}
set
{
DueDateString = value == null ? null : value.Value.ToString("d");
}
}
这是一个日期验证器:
[AttributeUsage(AttributeTargets.Property, AllowMultiple = true, Inherited = true)]
public class DateValidationAttribute : ValidationAttribute
{
public DateValidationAttribute()
{
}
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value != null)
{
DateTime date;
if (value is string)
{
if (!DateTime.TryParse((string)value, out date))
{
return new ValidationResult(validationContext.DisplayName + " must be a valid date.");
}
}
else
date = (DateTime)value;
if (date < new DateTime(1900, 1, 1) || date > new DateTime(3000, 12, 31))
{
return new ValidationResult(validationContext.DisplayName + " must be a valid date.");
}
}
return null;
}
}