Under the topic 'How To: Create a Custom Parameter Editor' my understanding is that you can change the default editor into a dropdown. When I try the example given the report parameters section is not displayed on the report. What can be the reason for this?

Hello Graeme,

It is allowed to replace the default parameters editors of HTML5 viewer with custom ones. The provided help article shows how to use Kendo DropDownList widget instead of the default editor.

Note that extending the viewer with additional Kendo UI widgets will require the usage of full Kendo UI JavaScript library like kendo.all.min.js. The subset of Kendo UI we ship with Telerik Reporting (telerikReportViewer.kendo-x.x.x.x.min.js) does not include all Kendo widgets.

Regards,
Silviya
Progress Telerik