@ Html. DisplayFor-DateFormat (“ mm/dd/yyyy”)

我有以下剃须刀代码,我想有 mm/dd/yyyy日期格式:

Audit Date: @Html.DisplayFor(Model => Model.AuditDate)

我已经尝试了许多不同的方法,但是没有一种在我的情况下有效

我的 AuditDate 是 DateTime?类型

我曾经尝试过类似的方法,但是得到了这个错误:

@Html.DisplayFor(Model => Model.AuditDate.Value.ToShortDateString())

附加信息: 模板只能用于字段访问、属性访问、单维数组索引或单参数自定义索引器表达式。

试试这个:

@Html.DisplayFor(Model => Model.AuditDate.ToString("mm/dd/yyyy"))

方法‘ ToString’没有重载,只有1个参数

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If you are simply outputting the value of that model property, you don't need the DisplayFor html helper, just call it directly with the proper string formatting.

Audit Date: @Model.AuditDate.Value.ToString("d")

Should output

Audit Date: 1/21/2015

Lastly, your audit date could be null, so you should do the conditional check before you attempt to format a nullable value.

@if (item.AuditDate!= null) { @Model.AuditDate.Value.ToString("d")}

Googling the error that you are getting provides this answer, which shows that the error is from using the word Model in your Html helpers. For instance, using @Html.DisplayFor(Model=>Model.someProperty). Change these to use something else other than Model, for instance: @Html.DisplayFor(x=>x.someProperty) or change the capital M to a lowercase m in these helpers.

Maybe try simply

@(Model.AuditDate.HasValue ? Model.AuditDate.ToString("mm/dd/yyyy") : String.Empty)

also you can use many type of string format like .ToString("dd MMM, yyyy") .ToString("d") etc

If you use DisplayFor, then you have to either define the format via the DisplayFormat attribute or use a custom display template. (A full list of preset DisplayFormatString's can be found here.)

[DisplayFormat(DataFormatString = "{0:d}")]
public DateTime? AuditDate { get; set; }

Or create the view Views\Shared\DisplayTemplates\DateTime.cshtml:

@model DateTime?
@if (Model.HasValue)
{
@Model.Value.ToString("MM/dd/yyyy")
}

That will apply to all DateTimes, though, even ones where you're encoding the time as well. If you want it to apply only to date-only properties, then use Views\Shared\DisplayTemplates\Date.cshtml and the DataType attribute on your property:

[DataType(DataType.Date)]
public DateTime? AuditDate { get; set; }

The final option is to not use DisplayFor and instead render the property directly:

@if (Model.AuditDate.HasValue)
{
@Model.AuditDate.Value.ToString("MM/dd/yyyy")
}

See this answer about the No overload for method 'ToString' takes 1 arguments error.

You cannot format a nullable DateTime - you have to use the DateTime.Value property.

@Model.AuditDate.HasValue ? Model.AuditDate.Value.ToString("mm/dd/yyyy") : string.Empty

Tip: It is always helpful to work this stuff out in a standard class with intellisense before putting it into a view. In this case, you would get a compile error which would be easy to spot in a class.

@ChrisPratt's answer about the use of Display Template is wrong. The correct code to make it work is:

@model DateTime?


@if (Model.HasValue)
{
@Convert.ToDateTime(Model).ToString("MM/dd/yyyy")
}

That's because ABC0 for ABC1 doesn't accept Format parameter.

I implemented the similar thing this way:

  1. Use TextBoxFor to display date in required format and make the field readonly.
@Html.TextBoxFor(Model => Model.AuditDate, "{0:dd-MMM-yyyy}", new{@class="my-style", @readonly=true})

2. Give zero outline and zero border to TextBox in css.

.my-style {
outline: none;
border: none;
}

And......Its done :)

For me it was enough to use

[DataType(DataType.Date)]
[DisplayFormat(DataFormatString = "{0:dd/MM/yyyy}")]
public DateTime StartDate { set; get; }

After some digging and I ended up setting Thread's CurrentCulture value to have CultureInfo("en-US") in the controller’s action method:

Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");

Here are some other options if you want have this setting on every view.

About CurrentCulture property value:

The CultureInfo object that is returned by this property, together with its associated objects, determine the default format for dates, times, numbers, currency values, the sorting order of text, casing conventions, and string comparisons.

Source: MSDN CurrentCulture

Note: The previous CurrentCulture property setting is probably optional if the controller is already running with CultureInfo("en-US") or similar where the date format is "MM/dd/yyyy".

After setting the CurrentCulture property, add code block to convert the date to "M/d/yyyy" format in the view:

@{  //code block
var shortDateLocalFormat = "";
if (Model.AuditDate.HasValue) {
shortDateLocalFormat = ((DateTime)Model.AuditDate).ToString("M/d/yyyy");
//alternative way below
//shortDateLocalFormat = ((DateTime)Model.AuditDate).ToString("d");
}
}


@shortDateLocalFormat

Above the @shortDateLocalFormat variable is formatted with ToString("M/d/yyyy") works. If ToString("MM/dd/yyyy") is used, like I did first then you end up having leading zero issue. Also like recommended by Tommy ToString("d") works as well. Actually "d" stands for “Short date pattern” and can be used with different culture/language formats too.

I guess the code block from above can also be substituted with some cool helper method or similar.

For example

@helper DateFormatter(object date)
{
var shortDateLocalFormat = "";
if (date != null) {
shortDateLocalFormat = ((DateTime)date).ToString("M/d/yyyy");
}


@shortDateLocalFormat
}

can be used with this helper call

@DateFormatter(Model.AuditDate)

Update, I found out that there’s alternative way of doing the same thing when DateTime.ToString(String, IFormatProvider) method is used. When this method is used then there’s no need to use Thread’s CurrentCulture property. The CultureInfo("en-US") is passed as second argument --> IFormatProvider to DateTime.ToString(String, IFormatProvider) method.

Modified helper method:

@helper DateFormatter(object date)
{
var shortDateLocalFormat = "";
if (date != null) {
shortDateLocalFormat = ((DateTime)date).ToString("d", new System.Globalization.CultureInfo("en-US"));
}


@shortDateLocalFormat
}

.NET Fiddle

I had a similar issue on my controller and here is what worked for me:

model.DateSigned.HasValue ? model.DateSigned.Value.ToString("MM/dd/yyyy") : ""

"DateSigned" is the value from my model The line reads, if the model value has a value then format the value, otherwise show nothing.

Hope that helps

I have been using this change in my code :

old code :

 <td>
@Html.DisplayFor(modelItem => item.dataakt)
</td>

new :

<td>
@Convert.ToDateTime(item.dataakt).ToString("dd/MM/yyyy")
</td>

This is the best way to get a simple date string :

 @DateTime.Parse(Html.DisplayFor(Model => Model.AuditDate).ToString()).ToShortDateString()

In View Replace this:

@Html.DisplayFor(Model => Model.AuditDate.Value.ToShortDateString())

With:

@if(@Model.AuditDate.Value != null){@Model.AuditDate.Value.ToString("dd/MM/yyyy")}
else {@Html.DisplayFor(Model => Model.AuditDate)}

Explanation: If the AuditDate value is not null then it will format the date to dd/MM/yyyy, otherwise leave it as it is because it has no value.

You could use Convert

 <td>@Convert.ToString(string.Format("{0:dd/MM/yyyy}", o.frm_dt))</td>

You can use the [DisplayFormat] attribute on your view model as you want to apply this format for the whole project.

[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:dd/MM/yyyy}")]
public Nullable<System.DateTime> Date { get; set; }

You can use this instead of using @html.DisplayFor().

@Convert.ToString(string.Format("{0:dd/MM/yyyy}", Model.AuditDate))

Instead of

@Html.DisplayFor(Model => Model.AuditDate)

Use

@Model.AuditDate.ToString("MM/dd/yyyy")

This style renders the date as: 06/02/2022.

You can style your string accordingly to how you need it.

You just need To set Data Annotation in your Model.

[DisplayFormat(ApplyFormatInEditMode = true,DataFormatString = "{0:MM/dd/yyyy}")]
public DateTime AuditDate {get; set;}

On view(cshtml page)

@Html.DisplayFor(model => model.AuditDate)

Nothing else you need to do. Hope its useful.