[Solved] custom grid validation popup message from edit event

[Wit]

Hi ,

I have tried to use a custom validation on the schema/model/fields but is not quite working for me.

custom: function (input) {
  if (input.is("[name='LogicalName']") && input.val() != "") {
      $http.post("odata/Entities/IsNameUnique", { logicalName: input.val() }).success(function (data, status, headers, config) {
         if (!data.value) {
         input.attr("data-custom-msg", "Name is not unique");
         return false
       }
        return true;
});
                                            }
                                        }

Instead I am trying to use grid edit event which is giving me more flexibility.
Example
dojo.telerik.com/aJeXE

How could I display validation popup message from edit event?

[Alexander Popov]

Hi Wit,

The Grid's edit event could be used to get the instance of the built-in Validator, extend its options with the new validation rules and messages and apply them using the setOptions method. For example: 

function onEdit(e) {
    var validator = e.container.getKendoValidator();
    var options = validator.options;
    var extendedOptions = kendo.deepExtend(options, { rules: { myRule: function (input) { /*....*/ return false; } }, messages: { myRule: "Custom validation message" } });
    validator.setOptions(extendedOptions);
}

Regards,
Alexander Popov
Telerik

 

 

[Wit]

Hi Alexander,

That looks very promising. I am using typescript in my project and kendo.deepExtend is not recognised. Would you have any suggestions how I could fix it?

Thank you
Wit

[Alexander Popov]

Hello again Wit,

Manually extending the options object should also work. For example: 

function onEdit(e) {
    var validator = e.container.getKendoValidator();
    var options = validator.options;
    options.rules.myRule = function(){/*...*/};
    options.messages.myRule = "message";
    validator.setOptions(options);
}

Regards,
Alexander Popov
Telerik

 

 

[Wit]

Hi Alexander,

Should that prevent me from moving to the next cell when input validation failed? Or should I manually cancel event? 

Thank you

[Alexander Popov]

Hi Wit,

That is correct - if the validation fails the user should not be able to leave the cell.

Regards,
Alexander Popov
Telerik