I have successfully used the tooltip behaviour to get tooltips with the categorical and numerical values shown when a user taps on any of the bars within a bar chart series using Xamarin UI for Telerik charts.

Is there any way to format the presentation of these values ?

For example, prefix or append some fixed test to indicate the units.

Does this tie in with the LabelFormat ?

 

Separately but slightly related I've only been able to get LabelFormat set on the numerical axis.

Can the categorical axis values be formatted with a formatter in the XAML (or code behind?)

Hello Ian,

Let me get straight to your questions. At the moment of writing there is no way to apply custom format to the ToolTips. You can request this feature in our feedback portal. As for the LabelFormat property of the axis I would like to turn your attention to the fact that this property is exposed in the base class of all axis. This means all axis inherit is and customers should be able to use it among all type of axis. Are you saying that one type of axis has it but you cannot find it in another type? 

If so we would like to ask you to prepare a small repro project and send it over so that we can investigate the reasons behind.

Regards,
Pavel R. Pavlov
Telerik by Progress