If I have a list of cities and I need to froce the user to select one of the list - apart from the single selection - because the whole view doesn't make any sense because each city present 100 percent so I don't need to view the data without filteration. Is there a way that I can force the user to select a city or set one city as a default selection but I don't want the user to uncheck all, one option has to be selected. Is there a way to do this.
One more thing, If I want to filter at report level, but I want to do this by using the embedded link, can I do that, because I tried but the filter control I added filtered only at page level.
I would really appreicate your help with these two issues.
