CFChart Dynamic Column HELP

Question

I looked over the posts on CFChart but did not find anything
that addresses my specific problem with the cfchart. So if you can
help, I'd appreciate it very much!
What I want to do is take the dynamic name of the column
derived from the first query and use that name in the Legend. E.G.
A_R1_DIS is the first dataset, A_R1_J is the second dataset, and
A_R1_PPLI is the third dataset. Then show a line graph with each
dataset based on the first query. The X Axis displays the Date/Time
value and the Y Axis displays the number of points for each record
of time for each dataset individually. I was able yesterday to get
all three datasets to display individually but when I tried to show
the legend it either displayed only the first Dataset name
"A_R1_DIS" or it displayed "NONE". Currently the code will not
display any line on the chart and the legend repeats the A_R1_DIS
as many times as there are records in the table (60+).
I use the following query to get the dynamic column name
"SelectedDatasetColName" from the MasterDataList table.
<CFQUERY name="getSelectedDatasetColName"
datasource="#getcfdbname.EventCFDBName#">
SELECT MDL_TestName + '_' + MDL_DatasetID + '_' +
MDL_MeaningfulName as SelectedDatasetColName
FROM MasterDataList
</CFQUERY>
Here is where I'm using the "SelectedDatasetColName" value:
******************************************* queries
<CFQUERY name="DatasetHistogramQry"
datasource="#getcfdbname.EventCFDBName#">
SELECT
<cfset i = 1>
<cfloop query="getSelectedDatasetColName">
#SelectedDatasetColName# as col#i#,
<cfset i = i + 1>
</cfloop>
JDay, TheHour, TheMinute,
convert(varchar(12), JDay, 114) + ' ' + convert(varchar(12),
TheHour, 114) + ':' + convert(varchar(12), TheMinute, 114) as
DateTime
FROM vPositionHistogram
ORDER BY JDay, TheHour, TheMinute
</CFQUERY>
Here is the code for the table; which works correct:
**************************** Report Code
<TABLE>
<TR>
<TH>Day</TH>
<TH>Hour</TH>
<TH>Minute</TH>
<CFOUTPUT QUERY="getSelectedDatasetColName">
<TH>#SelectedDatasetColName# Message Count</TH>
</CFOUTPUT>
</TR>
<CFOUTPUT QUERY="DatasetHistogramQry">
<TR BGCOLOR="###IIF(DatasetHistogramQry.currentrow MOD 2,
DE('DCDCDC'), DE('FFFFFF'))#">
<TD ALIGN="center">#JDay#</TD>
<TD ALIGN="center">#TheHour#</TD>
<TD ALIGN="center">#TheMinute#</TD>
<CFSET i = 1>
<CFLOOP INDEX="X" FROM="1"
TO="#getSelectedDatasetColName.recordcount#">
<TD ALIGN="center">#evaluate("col#i#")#</TD>
<CFSET i = i + 1>
</CFLOOP>
</TR>
</CFOUTPUT>
</TABLE>
Here is the output for the table; Dynamic Column Name used to
repeat counts for each dataset.
********************************* output
Day Hour Minute A_R1_DIS Message Count A_R1_J Message Count
A_R1_PPLI Message Count
37 17 36 0 2 35
37 17 37 19 6 32
37 17 38 28 30 33
37 17 39 40 27 27
37 17 40 66 64 32
Here is the problem code. I have tried several variations on
this code but currently all it does is display a blank chart.
**************************** Chart Code
<CFCHART FORMAT="flash" CHARTHEIGHT="340" CHARTWIDTH="600"
SHOWXGRIDLINES="yes" SHOWYGRIDLINES="yes" SHOWBORDER="no"
FONTBOLD="no" FONTITALIC="no" XAXISTITLE="Timeline (Day
Hour:Minute)" YAXISTITLE="Message Counts" SHOW3D="no" ROTATED="no"
SORTXAXIS="no" SHOWLEGEND="yes" TIPSTYLE="MouseOver"
SHOWMARKERS="no">
<CFOUTPUT QUERY="DatasetHistogramQry">
<CFSET i = 1>
<CFLOOP INDEX="X" FROM="1"
TO="#getSelectedDatasetColName.recordcount#">
<CFCHARTSERIES QUERY="DatasetHistogramQry" TYPE="line"
ITEMCOLUMN="#DateTime#" VALUECOLUMN="#evaluate("col#i#")#"
SERIESLABEL="#getSelectedDatasetColName.SelectedDatasetColName#">
<CFSET i = i + 1>
</CFLOOP>
</CFOUTPUT>
</CFCHART>
Please let me know if you need any additional info on my
problem and if you can help, it is greatly appreciated!!!!
- Debra

Answer 1

DateTime is a column in the vPositionHistogram (View). Col#i#
is the variable used to loop through the column names derived from
the getSelectedDatasetColName query. The view is populated
dynamically and the columns in it vary depending on the dataset
used to populate the view. The view can have 1 to many columns.
That is why I pull the column names from the MasterDataList table
and use a variable to get the values from each column. My column
names end up being Col1, Col2, Col3, and so on. I use that variable
in the loop to get the data from vPositionHistogram for each column
in the report/chart. I made some headway on Friday before I called
it a day, but I will try the last suggestion and post my findings
in a little while. Thanks!