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Pie Chart Legends

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Will
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Will asked on 20 Oct 2008, 09:53 AM
Hi there,

I am creating a pie chart using the rad chart.  It is created by databinding a data table to the rad chart and there will be either 1 or 2 series.  The problem I have is the legend is just showing a white dot with the name of the series rather than each item within the series.  So as an example if its just 1 series, and they are sales totals by month.  So you will have 12 segments of varying size and the series title is something like "2008".  I know that I can put labels on the actual pie chart but we would rather have a the legend display the 12 months and their relevant colours.  Does anyone know how to do this?

Thanks

Will

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Ves
Telerik team
answered on 21 Oct 2008, 05:32 AM
Hello Will,

The LegendDisplayMode will come in handy in this case. Please, find more details in the following help topic:

http://www.telerik.com/help/aspnet-ajax/legenddisplaymode.html

Hope this helps.




Kind regards,
Ves
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Will
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answered on 21 Oct 2008, 11:23 AM
Thanks.  I have managed to change the Legend display mode so that it displays the labels but now it is outputting the labels as Item 1, Item 2, Item 3 and so on.  I want it to you use the values from one of the columns in the Datatable that the chart databinds too.  I have specified it with the PlotArea.XAxis.DataLabelsColumn property but I am guessing I have to use something else since there is no X axis.

any ideas?

Thanks

Will
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Ves
Telerik team
answered on 21 Oct 2008, 11:43 AM
Hi Will,

The value of the ChartSeriesItem.Name property will be displayed in the legend. You can wire ItemDataBound as shown in this blog post and modify the Name property.

Greetings,
Ves
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