SSRS - Bar Chart Autosize?

I have a Microsoft Reporting Services 2005 chart that renders into a Bar Chart. The chart has dynamic columns on it based on the data in the database. (If there are 35 entries of data rows in a day then there will be 35 bars, if there are 1,000 entries of data rows in antoher day than there will be 1,000 entries of data rows that day.) So, one day the bar chart might have 35 bars and the next it might have 1,000. I have searched and searched, but I can't find an autosize property to the chart. So, if I have 1,000 bars the chart is illegible because it tries to crams the bars into a static chart area. Does anyone know how to set the chart to autosize so that it will be meaningful whether there are 35 bars, or 1,000 bars. Thanks in advance!