Remote Validation not displaying the errors from

[Yassen]

Dear all,

I had followed this useful link Remote Validation to apply the remote validation on MetaData class as follows;

Metadata

public class CoinMetadata
{
    [Required(ErrorMessageResourceType = typeof(Errors), ErrorMessageResourceName = "NameReq")]
    [Display(Name = "CoinName", ResourceType = typeof(ScreenRes))]
    [Remote("IsValidName", "Coin", ErrorMessageResourceType = typeof(Errors), ErrorMessageResourceName = "NameDuplicate")]
    // AdditionalFields="coin_id", ErrorMessageResourceType = typeof(Errors), ErrorMessageResourceName = "NameDuplicate")
    public string name { get; set; }
}

 

The Controller:

public JsonResult IsValidName(string name)
{
    bool found = db.IGL_coin.Any(name => name.name == name);
    if (!found)
    {
        return Json(true, JsonRequestBehavior.AllowGet);
    }
    return Json(false, JsonRequestBehavior.AllowGet);
}

The error message from resource file doesn't show up, instead It shows false.

How can I make it works?

[Stefan]

Hello Yassen,

After inspecting the example I noticed that IsValidName is returning false instead of the validation message like in the provided example:

string suggestedName = String.Format(CultureInfo.InvariantCulture,
                "{0} is not available.", ProductName);
.....
return Json(suggestedName, JsonRequestBehavior.AllowGet);

Please check if returning a string message instead of false will resolve the issue.

Regards,
Stefan
Telerik by Progress

[Yassen]

Hello Stefan,

It does as a matter of fact !!,

My question is that Why it can not return the error message from the data annotation ?

regards

[Stefan]

Hello Yassen,

 

The error message which will be should is a custom one and it is set in the validation controller.

Please advise if the desired result is to return different message that the one set in the validation controller?

Also, I can suggest checking the other available approaches for validation:

http://docs.telerik.com/aspnet-mvc/getting-started/validation?wcmmode=disabled#common-scenarios

Regards,
Stefan
Telerik by Progress

[Yassen]

Helllo Stefan,

Yes, I need to return the message on the MetaData class defined by DataAnnotation attribute

1.public class CoinMetadata
2.{
3.    [Required(ErrorMessageResourceType = typeof(Errors), ErrorMessageResourceName = "NameReq")]
4.    [Display(Name = "CoinName", ResourceType = typeof(ScreenRes))]
5.    [Remote("IsValidName", "Coin", ErrorMessageResourceType = typeof(Errors), ErrorMessageResourceName = "NameDuplicate")]
6.    // AdditionalFields="coin_id", ErrorMessageResourceType = typeof(Errors), ErrorMessageResourceName = "NameDuplicate")
7.    public string name { get; set; }
8.}

 

have a look at line number 5, the error message comes from a resource file.

Best regards

[Stefan]

Hello Yassen,

Please have in mind that the provided demo example is completely custom and it is based on the following MSDN documentation, and it is not directly related to Kendo UI:

https://msdn.microsoft.com/en-us/library/gg508808(vs.98).aspx

The message is coming from data--remote
  

messages: {
 remote: function (input) {
  return input.attr("data-val-remote");
 }
}

Which respectively is coming from the success function:

success: function (data) {
 if (data == true) {
  input.attr("data-val-remote", "");
 }
 else {
  input.attr("data-val-remote", data);
 }
 input.attr("data-val-remote-recieved", true);
 validator.validateInput(currentInput);

                        }

If the success is not set, the standard data--remote attribute will be shown.

Regards,
Stefan
Telerik by Progress

[Yassen]

Hello Stefan,

Appreciate your rely.

I have a very basic scenario, what should I do to show the errors from the resources attached using data annotation?

Regards

[Stefan]

Hello Yassen,

The link provided in a previous reply demonstrates the most common scenarios when working with validation and data annotations:

http://docs.telerik.com/aspnet-mvc/getting-started/validation?wcmmode=disabled#common-scenarios

Please advise if more information is needed on this matter.

Regards,
Stefan
Telerik by Progress