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asp.net mvc 3.0 remote attribute

Nov 12 2011 8:35AM by Solanki Bhavik A.

Often in web applications, while validating the data at client side, we often have the scenario of calling a function, which is implemented in server side. For example, we might want to validate the entered user name is already exists in our database. To facilitate these types of requirements, MVC 3.0 introduce new tag "remote" which we will easily use for customer validation on client side in mvc 3.0

 public class UserInformation
{
[Required]
[System.Web.Mvc.Remote("IsUserNameExits", "Validation")]
public string Name { get; set; }
}

 public JsonResult IsUserNameExits(string Name)
{

//you can write code for check in database

if (Name == "Bhavik")
{
return Json("Sorry UserName Already Taken", JsonRequestBehavior.AllowGet);

}
else
{
return Json(true, JsonRequestBehavior.AllowGet);
}
}

8 Comments

Thanks Bhavik,

So many times i had this requirement. But unfortunate, in my projects we are not using MVC.

Very useful..

commented on Nov 12 2011 8:37AM

Ramireddy

2 · 41% · 12972

Hi,

i am very happy if some one like my post and i am always ready to help and share knowledge. Regards, bhavik

commented on Nov 13 2011 10:24AM

Solanki Bhavik A.

155 · 1% · 310

Hii,

Thank you for posting this information. I would like to add some more to this. I face problem with remote that function not get executed when page comes from cache. To execute validation function each time , need to mention [OutputCache(Location = System.Web.UI.OutputCacheLocation.None, NoStore = true)] in just above the validation function.

In above example like this [OutputCache(Location = System.Web.UI.OutputCacheLocation.None, NoStore = true)] public JsonResult IsUserNameExits(string Name) { }

commented on Nov 13 2011 10:17PM

DHARA Gandhi

1496 · 0% · 13

Yes it true thanks for info. i have just check

commented on Nov 13 2011 10:25PM

Solanki Bhavik A.

155 · 1% · 310

Good one Bhavik

commented on Nov 13 2011 11:40PM

Kirti M.Darji

10 · 16% · 4985

Thanks Kirti bhai. Actually i have start learning for mvc 3.0 razor for my new project.

commented on Nov 13 2011 11:49PM

Solanki Bhavik A.

155 · 1% · 310

I will be doing a new project soon too in ASP.NET MVC I've been watching PluralSight videos to help me get started.

commented on Nov 16 2011 2:11PM

Naomi

33 · 6% · 1774

it's really very good you can also check my blog where i will make post update which i have done in mvc Blog link text

and here is best link to learn mvc :http://www.asp.net/mvc

Regards, Bhavik

commented on Nov 16 2011 10:46PM

Solanki Bhavik A.

155 · 1% · 310

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"asp.net mvc 3.0 remote attribute" rated 5 out of 5 by 5 readers