Unfortunately your approach will not work in this case. The InvokeCommandAction can't pass event arguments as command parameters. But arguments of the RadMap.MapMouseClick event contains geographical location of the place where mouse button has been clicked. It is very important to pass it to the command. The alternative is creation of own behavior. You can find samples in the Internet. For example, here:
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for WPF.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>