Interactive Chart

Hi
i created a report conatins interactive chart.

the report is material price changes so the data table defined as 3 Columns (Material Date Price)

i set
data column = [Material]
chart type = line
x = Date
y = Price
the report create a line series for each material and every thing is ok till now.

first problem is that the hyperlink dosen't accept x value type of Date it's accept only string.


now i want to make a hyperlink but not for x value or y value
i want it to all of one Series (One Material)

so i didn't use the hyperlink property and tried to make something else

i used MouseMove event of MSChart object but i cant modify chart appearance from this place
i got nice result , i could get the DataPoints , legends , ... and every thing mouse moves over


i changed DataPoint Color and some property as microsoft example of charts
but no change appears

i called MSChart.Page.Refresh() but nothing happened
i called Report.Preview.Refresh() but nothing happened


the simplest thing : i tried to change the cursor of MSChart Object
but no way

the question:
how to make somechange in MSChart object Appearance as Interactive Chart example do?
for example instead of highlighting DataPoint i want to highlight the Legends when mouse moves over.
or :

Can i make the hyperlink pass somthing deffirent from x Value like series name or series color or ...... anythnig else to Report Parameter.


Thanks