Created Issue: Ajax charts issue [27390]

Hi there,

I'm newbee of ajax tool control and currently dealing to some of chart controls including Ajax charts (version 4.1.7.0123).
I just did some testing for my demo in this week and found that there are some issues at line and pie charts as following:
1) For Area / Line chart:
- Can you provide option that to hide the plot value display? when line chart display for many set, it look so urgly.
- The Y value is always required the same certain data set as provided X value set, for eg:
provided X = 1996,1997,1998
If Y value is only have 2 points such as (100,1996) , (200,1998), the line is not generate properly. In this case I have to find out the missing point and set a defaut value (0,1997)

2) For Pie chart:
- The chart can not render properly when the provided PieChartValues is only contained 1 or 2 items.

Notes: kindly check out the captured pics for details.

Hope to see a better charts in next version.

Regards,
Jack Vo