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.

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.

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

My apprach is:

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!

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!

Interesting idea!

I will think aboout it,
thanks!

BTW: I just noticed you've given my answer a B-grade, what's the reason for that?

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!