I have the following MaskedTextBox:

<input kendo-masked-text-box id="phoneNumber" name="phoneNumber" ng-model="item.phoneNumber" k-mask="'(999) 000-0000'" />​

If I enter (555) 555 it doesnt mark it as invalid.  How do I ensure it is only valid if all digits are entered?

Hello Elliot,

I would suggest you define a custom validation rule, that will check whether the entered value is valid or not. You can find more details about custom validation rules here:

• http://docs.telerik.com/kendo-ui/framework/validator/overview#custom-validation-rules

Basically, you can check whether the value of the input contains "_" character or the raw value is less then the expected one.

The widget does not have built-in way to validate (and show error message) if the entered value is not full.

Regards,
Georgi Krustev
Telerik