Im loading a page in a dialog with a parameter being passed, but I am unable to access the parameter value in the load event of the page i.e ${parameters.incomingOrderNo} or this.parameters.incomingOrderNo.
I am using it to filter an array I then bind to a grid
result = result.filter(i => i.OrderNumber == ${parameters.incomingOrderNo});
We are not aware of any problems related to page parameters not being available in the Load event. On the contrary - we use them extensively when creating CRUD pages. If you have a Radzen subscription you can send us your application to info@radzen.com and we will troubleshoot.