How can you use variables with a frxChartObject

Mike10

I'm new (this is day 3) to using FastReports and need a bit of help. I have a report with the following dataset columns displayed on my MasterData band:

Q1Budget, Q2Budget, Q3Budget, Q4Budget
Q1Spent, Q2Spent, Q3Spent, Q4Spent

I then use a simple variable defined in Fastreports called AnnualBudgetTotal and AnnualSpentTotal. These two variables are displayed flawlessly in the MasterData band to the right of "Q4" above and simply consist of an expression adding up the columns.

My question comes with trying to use those two variables in a chart. I defined a two column bar chart in the MasterData band and want to use AnnualSpentTotal for one bar and <AnnualBudgetTotal>*(<DayofTheYear>/365) as the other bar. The problem I'm having is I've found no way to get the chart to read a variable. If I select "Fixed data" it seems to expect text constants and if I pick data band, it seems to only allow variables from my dataset.

Is there a way to chart FastReport variables I've created? If so, what is the syntax?

I've searched the forums and documentation but have yet to find what I'm looking for.

Thanks in advance,
Mike

gordk

Mike
you can write code to populate the xsource and ysource values for fixed data
just select fixed data and leave the values empty.
in the obp event of the chart object write code to set the values.
sample
Chart1.SeriesData[0].XSource := 'Jan;Feb;Mar;Apr';

Chart1.SeriesData[0].YSource := '31;28;31;30';
note that the values are a string of semicolon separated values
ie
Chart1.SeriesData[0].XSource := '+<var1>+';'+<var2>+';'+<var3>+':'+<Var4>+';

Mike10

gordk, thanks for the reply. Unfortunately, when I select my frxChartObject and then the Events tab, the object inspector shows no events whatsoever. I'll poke around a bit more, but as yet I'm unclear why there are no events listed.

Mike

gordk

sounds like you are using a basic version or the version that ships with XE.

Mike10

Thanks gordk. That explains it. I'll need some more experience with FR before deciding to get an expanded version. In the mean time, I'll give up on graphing report variables.