For instance, the control's client API can be available if the EmptyItemTemplate (or a kind of the EmptyDataTemplate) is defined.
Ticket
S18628
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Provide an ability to use the control's client-side API, when the bound data source is empty.
See also S30233
Now, the rendering logic of the ASPxDataView control has been changed and it is always rendered into the page, be it empty or not. For an empty ASPxDataView control a specific explanatory text (new EmptyDataText property) or a custom template (new EmptyDataTemplate property) can now be rendered, and a specific appearance style can be defined (new EmptyDataStyle property).
Thanks,
Andrew