MVC3 & Razor - Change DateTime String from “mm/dd/

问题:

I am trying to stop the Time from showing up in a Birthday Text Field that uses DateTime

My Code: (I'm using the Jquery DatePicker)

<label for="birthday">Birthday:</label>
            @Html.TextBox("birthday", (Model.Birthday.ToString()), new { @class = "datePicker" })

The Javascript:

$(document).ready(function () {
    $('.datePicker').datepicker({ showOn: 'both', buttonImage: "/content/images/calendar-red.gif" });
});

I have the Model setup for the date:

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

Still the Text in the Text box displays:

"8/21/2010 12:00:00 AM"

I want Text in the Textbox to diplay as just:

"8/21/2010"

I have tried everything from:

@inherits System.Web.Mvc.WebViewPage<System.DateTime>

but wont let me do that since I am @using a model

回答1:

I would use an editor template and data annotations on the view model to specify formatting which makes the views much cleaner:

[DataType(DataType.Date)]
[DisplayName("Birthday:")]
[DisplayFormat(DataFormatString = "{0:dd/MM/yyyy}", ApplyFormatInEditMode = true)]
public DateTime? Birthday { get; set; }

and then inside your view:

<span class="datePicker">
    @Html.LabelFor(x => x.Birthday)
    @Html.EditorFor(x => x.Birthday)
</span>

and then adapt the selector because the textbox will no longer have the datePicker class:

$('.datePicker :text').datepicker({ 
    showOn: 'both', 
    buttonImage: "/content/images/calendar-red.gif" 
});

回答2:

Try changing to this:

@Html.TextBox("birthday", (Model.Birthday.Value.ToShortDateString()), new { @class = "datePicker" })

Since your DateTime is Nullable you need to do .Value before you can access the DateTime methods.

When calling ToString on a DateTime it will give you Date + Time. So Instead of calling ToString you want to use either ToString with formatting or ToShortDateString.

MSDN has the following to say about ToShortDateString

The string returned by the ToShortDateString method is culture-sensitive. It reflects the pattern defined by the current culture's DateTimeFormatInfo object. For example, for the en-US culture, the standard short date pattern is "M/d/yyyy"; for the de-DE culture, it is "dd.MM.yyyy"; for the ja-JP culture, it is "yyyy/M/d". The specific format string on a particular computer can also be customized so that it differs from the standard short date format string.

回答3:

I was actually running into this problem with Razor using MVC 3. I ended up having to create a DateTime Partial Class in Shared/EditorTemplates to get the attributes I needed.
Previously my view was: @Html.TextBoxWithAttributesFor(m => m.To, new { @class = "text-box", @readonly = "readonly" }) but this kept given me the TimeStamp. Even when I tried .Value.DateTime or any other work around. But my current, working solution is:

view:

@Html.EditorFor(m => m.To)

partial class:

@model System.DateTime
@Html.TextBox("", (Model.ToShortDateString()), new { @class = "text-box", @readonly = "readonly" })

I used this page as a second source: http://buildstarted.com/2010/09/10/overriding-displayfor-and-editorfor-to-create-custom-outputs-for-mvc/

回答4:

Where you have "Model.Birthday.ToString()" you need to replace it with "Model.Birthday.ToShortDateString()"