I hope today finds you well.
If you want complete control over the checkout process I'd urge you to take a look at our open source one-page-checkout example. The blog post can be found here. And source is on Git Hub.
Additionally you can hook into the pre-process order event. Our documentation for this is here. It fires before the order is placed. In short it's like this:
Global : System.Web.HttpApplication
sender, EventArgs e)
sender, Telerik.Sitefinity.Data.ExecutedEventArgs e)
OrderValidator EcommerceEvents_PreProcessOrder(Guid cartOrderId, CheckoutState checkoutState, Customer customer)
OrderValidator validator =
"Order is valid"
The documentation also includes information on all of our event methods.
I hope this helps.
the Telerik team
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