Need Help Regarding Custom Colors For Charts In Reporting Services

I need some help regarding Custom Colors implementation for Charts in the Reporting Services.



What we are trying to do is to make every color for every Series(see example below) to be a customized Corporate color.



For example each of the series on the Chart should be in specific Custom Color:

Series 1 - "LightBlue"
Series 2 - "LightYellow"

Series 3 - "DarkBrown"



All I found from MSDN is how to do it in the Chart Properties in a Code section (right click on the report outside the chart -> Properties -> Code tab -> paste the Custom Code ).



And then to use it in the Chart color definition as:


Code Snippet=Code.GetColor( Series# )











But we are trying to do it in a separate C# class that would be updated only in one place, instead of changing 30 reports each time something is changed. So that it could be generic.





The C# class:






Code Snippet

namespace CustomColorPalette

{

public class CustomPalette

{

public CustomPalette()

{

}



public static string GetColor(string GroupingValue)

{

int groupingValue = int.Parse(GroupingValue);

string[] colorPalette = {"Green", "Blue", "Red"};

if (groupingValue < colorPalette.Length)

{

return colorPalette.GetValue(groupingValue).ToString();

}

else

{

return "Black"; // if # of Series is more than defined - all undefined will be = Black color

}

}



}

}









I tried 2 different ways:





1.



Then I put a code into a Custom Code section of a report:






Code Snippet

Public Function GetColor(SeriesNumber as String)

Return CustomColorPalette.CustomPalette.GetColor(SeriesNumber)

End Function







And in the Chart Custom Color settings I put:




Code Snippet=Code.GetColor( Fields!SeriesNumber.Value )





And after compilation I get an error:



Error 303 [rsCompilerErrorInCode] There is an error on line 2 of custom code: [BC30451] Name 'CustomColorPalette' is not declared. c:developmentvoyagerreportsvoyager convert reports.rootvoyager convert reportsReport_007D.rdl 0 0










2.



Second way I tried:





Then I put a code into a Custom Code section of a report:






Code Snippet

Dim X As CustomColorPalette.CustomPalette

Protected Overrides Sub OnInit()

X = new CustomColorPalette.CustomPalette()

End Sub









And in the Chart Custom Color I put:




Code Snippet=Code.X.GetColor( Fields!SeriesNumber.Value )







And after compilation I am getting an error like this:

Error 302 [rsCompilerErrorInExpression] The BackgroundColor expression for the chart €˜chart2€™ contains an error: [BC30456] 'X' is not a member of 'ReportExprHostImpl.CustomCodeProxy'. c:developmentvoyagerreportsvoyager convert reports.rootvoyager convert reportsReport_007D.rdl 0 0



Is there any workaround? Or all I can do is to make the Custom Colors manually in each report, and if something need to be changed - I will need to change it in each report separately





Thanks,

Alex