Hello Ming,
Indeed currently this scenario is not possible as AxisX does not support logarithmic mode. However, we have already logged this feature request in our public issue tracking system and it will be considered for one of the next versions of the control (you can vote for it
here in order to increase its priority).
Regards,
Freddie
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Explore the
Telerik Public Issue Tracking
system and vote to affect the priority of the items