Hi Mac P,
Could you please give us more information on what size strategy are you planning to use? It seems that you want to size your controls with a ration in respect to other controls or real estate on the page. If that is the case, then you need to control the size of the RadUpload control with the parent's container (panel). Please keep in mind that the RadUpload control has Min(Width)Height properties set, so you might probably want to set these properties explicitly to 0 so that they do not affect Height/Width values coming from the parent panel.
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