Can't change default error template

[iDoklad]

I have a kendo grid with in cell editing. I extended the validator to add a new validation rule and message. This is working correctly.

However, I can't seem to change the default error template for the validation message. Here is the code used to extend the validator:

(function ($, kendo) {
    $.extend(true, kendo.ui.validator, {
        rules: {
            uniqueTagName: function (input) {
               ...
        },
        messages: {
            uniqueTagName: resources.Message_TagAlreadyExists
        },
        errorTemplate: "<span>#=message# TEST</span>"
    });
})(jQuery, kendo);

[Boyan Dimitrov]

Hello Radoslav,

The recommended approach for customizing a default error message would be on Model level in the C# code. For example in order to define a new error message for the required validation you can do that:

[Required(ErrorMessage="my custom error message")]
[DisplayName("Product name")]
public string ProductName
{
    get;
    set;
}

Regards,
Boyan Dimitrov
Progress Telerik