If you show them all from the server then they will be shown in the same time on the client - when the response is received. This means that you can set the OffsetY server property
on the server according to the order you wish them to have. Please note that in order for this to take effect you need to also update the RadNotifications in the AJAX request (if you are not using a full postback). An alternative is to execute a JS function from the server
and use your existing client-side logic.
the Telerik team
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