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yearly bar graph

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This is a migrated thread and some comments may be shown as answers.
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John asked on 19 May 2011, 12:44 PM

I'm trying to create a 2D bar graph that will show values for each year.
2001 - 10
2002 - 2
2003 - 24
However I don't get it to work like I want to. I manage to get the values out correctly, but instead it says 1, 2, 3, 4 under.

I was trying to accomplish this by doing the same way that the standard chart works like -
List<KeyValuePair<string, int>>();

but that didn't work out as I said.

What kind of data can I assign to the graph to display the information I want to?

I've also tried to do this:
DataSeries dataSeries = new DataSeries();
            foreach (var pair in retVal)
                var dp = new DataPoint {XCategory = pair.Key, YValue = pair.Value, IsDateTime = true};
            InvoiceData = dataSeries;

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answered on 24 May 2011, 10:31 AM
Hi John,

Basically, this sort of information is carried by the series labels - the labels positioned above the bar series. However, you can also add this data to the x axis labels. Essentially, you can have a field in the underlying datasource, which carries this information, and bind it accordingly. Which visual item in the chart is bound to this datafield is determined by the item mappings. More information on this is available in the following article:

Essentially, you can use the .XCategory or .Label mappings to visualize the data properly. 
Alternatively, depending on the precise setup, you may want to consider using grouping and/or aggregation. More informaiton on this is available in the following example:

I hope this information helps.  

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