Chart similar to progressbar

Hi, I want to use RadChart to create a sort of Progressbar, because I need to inform the user about his memory usage and remaining memory.
I'd like create a progressbar like this:
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| Database 10% | File System (80%) |  Unused(10%) |
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I created a prototype but don't know how to remove the 'blank' area around the chart, because I only want to show the ChartSeriesItems...

PS: please tell me in advance if it is not possible. I'll look for another solution.

Are you looking to just display the single bar with different sections (such as in your text representation) and nothing surrounding it? I'm pretty sure that no matter what you will have some outstanding area around the series item itself. You could always remove the margins created around the plot area and see if that fits your needs. There's a documentation article, found here, which explains how.

Thank you.
I am trying.