SSRS 2008 chart: set line colors

Hi experts,

I have an issue on a line chart.
My chart plots project hours for 12 months:
    x-axis: jan to dec,
    y-axis: total of hours

I have 2 value groups: plan-hours and actual hours for each project.

Now I want the report to plot the values for plan and actual using the same color but using a different pattern, so that each project gets the same color.

I have attached a screenshot of my chart definition in SSRS for more details on my chart.

Does anybody have a clue on that?

Thanks a lot in advance :-)

Chart definition in SSRS
Lupo09Asked:
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ValentinoVBI ConsultantCommented:
To give them the same color: right-click each line in the designer and select Series Properties.  Switch to the Fill page and specify your preferred color.

The line style is set through the Border page.
Lupo09Author Commented:
Hmm, that won't work as the user is free to select as many projects as he wants.

I don't know how many lines there will be at run time, I only know that each project will be represented by two lines: one cor the actual values and one for the plan values.
ValentinoVBI ConsultantCommented:
Ow right, I see what you mean now!  In that case the approach needs a little more creativity.  To ensure that each project uses its own color the best option is to add a color field to your dataset.  Hopefully your query can be edited?  Let me know if you need help with this part. (Currently I don't even know what your data source is, but I assume a regular SQL Server DB?)

Once you've got the color field in the dataset you can just use that in the Color property of both series.

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Lupo09Author Commented:
Yes that works as a workarround (because i have to foresee the maximum number of projects that may be selected).

My apprach is:
In my SQL string I use the DENSE_BANK() -clause in order to get a unique number for each project
Then I use the case clause to assign a color to the first 20 numbers
I have to do it that way since I have some 100 projects, I cannot assign colors to each project. Instead I find the number of selected projects which I limit to 20 (only up to 5 or 6 are sensible I think)

Now I have a color for each project in the selected resultset.
And now I can assign the color field to both of the series and use different patterns in order to distinguish them.

Thanks!
ValentinoVBI ConsultantCommented:
Glad to hear you got it to work!  And indeed, limiting the number of projects seems sensible, the chart becomes unreadable otherwise anyways...

Something I was thinking: as you may already know, SSRS uses color codes represented in RGB and a color consists of three times a number in the 0 - 255 range in hexadecimal.  As you've given each project a unique number perhaps it's an option to come up with a formula that generates a unique color code per project instead of hard-coding the actual colors.  Some food for thought :)

Good luck with the project!
Lupo09Author Commented:
Interesting idea!

I will think aboout it,
thanks!
ValentinoVBI ConsultantCommented:
BTW: I just noticed you've given my answer a B-grade, what's the reason for that?
Lupo09Author Commented:
Oh, hey...

yes, I thought, I figured out a proper way to assign colors to projects on my own, and this is "only" a workarround since the number of selectable projects is limited (which is not a real problem in reality, of course).

Thanks!
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