DynamicRangeMinimum and DynamicRangeMaximum not working in shape widget

Hi,

I am using a shape widget for dynamic fill of data. But when I give the dynamicrangeminimum (#200)  data and dynamicrangemaximum (#500) data from two services returning two numbers it is not showing any result. I dont want to give the minimum and maximum data as static because the data will be changed dynamically for every minute. But when I binded one value to data property and kept a static maximum value it is working fine but my requirement is to change both minimum and maximum value dynamically. So how can I make the dynamicrangemaximum and dynamicrangeminimum property to work?

Please provide some help.

Thanks,

V Shalini.