ASP.Net MVC model binding - how to change date format?

Question

I have this application, and the default date format must be dd/MM/yyyy (the language is Brazilian Portuguese).

I already had set culture and UI culture to pt-BR and now myDate.ToShortDateString() returns the dates as I want. I have no trouble displaying them.

The problem is, when the user fills an input field with a date such as 17/08/2011 and submits the form the DateTime parameter to my action becomes null. If I supply a date in the format 08/17/2011, it works fine.

How can I make the ASP.Net MVC model binding to parse my dates correctly?

Try the solution from this question stackoverflow.com/questions/6177626/… — agradl
– agradl, Commented Aug 17, 2011 at 20:01

Doug · Accepted Answer · 2011-10-24 15:42:10Z

11

I found what happended. My form was posting via GET method, and the MVC just uses the culture for an action parameter when it's passed in the RouteData or by the form via POST method.

I just changed the form to POST method and it worked.

edited Oct 24, 2011 at 15:42

answered Aug 22, 2011 at 1:32

Doug

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2 Comments

Phoenix_uy Over a year ago

A day lost just because noone ever say that the GET method doesn´t apply the culture. Saved my day.. Thanks, still, you should correct your post, it works with POST not with GET.

webStuff Over a year ago

More info about how the MVC ModelBinder works and why: weblogs.asp.net/melvynharbour/mvc-modelbinder-and-localization

Tae-Sung Shin · Accepted Answer · 2011-08-17 20:06:18Z

5

Try this on your property in the view model:

[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:dd/MM/yyyy}")]

answered Aug 17, 2011 at 20:06

Tae-Sung Shin

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Comments

Scoregraphic · Accepted Answer · 2015-04-16 16:17:03Z

1

I'm pretty sure the issue is a lack of a DateTimeFormat on your DateTime types.

<input type="text" name="DateProperty" id="DateProperty"
       value="@(Model.DateProperty.Value.ToString("d",
             System.Threading.Thread.CurrentThread.CurrentUICulture.DateTimeFormat))" />

EDIT**

Another thing you want to be sure of is that the "name" property of your input element matches what you're passing into your action. If it doesn't null will appear on POST action every time.

     [HttpPost]
     public ActionResult DoStuff(string dateParam)
     {
       return RedirectToAction("Home","Index", new { });
     }

"dateParam" Should match the name property here.

<input id="dateParam" name="dateParam" value="10/10/2010" />

edited Apr 16, 2015 at 16:17

Scoregraphic

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answered Aug 17, 2011 at 20:05

The Internet

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1 Comment

Doug Over a year ago

Outputting the date to HTML is not the problem. Binding the submitted value is. Even if I do what you said the form submit will not work as expected.

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