This has been asked before here: https://www.telerik.com/forums/kendo-validator---focus-on-first-invalid-field
However, the given solution does not work with a kendoTextBox.
If you use the example given in the previous post (http://dojo.telerik.com/ukoLUJ/4?_ga=2.193348590.2100086651.1638809904-402941789.1637689930) and replace the inputs with kendoTextBoxes and update the libraries to the latest version, they will not gain focus when invalid.
Any help would be appreciated, thanks,
Kevin