thanks for your feedback.
@ Sebastien : i am using wicket-kendo-ui-theme-default as dependency and the CSS files are not added static in the header - it seems as if they are contributed during components render phase ( so if they are not visible initially, the page header
contribution takes place as soon as these components are rendered - but that seems to be to late, since not the complete page is in ajaxtarget...)
@Martin : that seems to be the problem. When Page is rendered, no AjaxDateTimePicker is rendered, no header css. When setting AjaxDateTimePickers to visible ( surrounding panel ), Page itself is not in ajax target and components dont seem
to find the css files in header.
Is there a possibility to contribute the theme css files to the header programatically, so they are already rendered bevor the components get visible?
Best regards and thanks for your support!