X-Axis label values not populating

[Josh]

Hello, I'm creating a bar chart. My AxisY is a integer count and my AxisX is a string for a build number.

My ItemSource is pointing to an

ObservableCollection<Tuple<string, int>>

If I have 30 build buckets, when viewing my chart the buckets for my AxisX are numbered 1-30, instead of the string buildnumber. How can I get my buildnumber to show up as the tick name instead of this 1-30?

Thanks, Josh

Image Example

<telerik:RadChart x:Name="radChart" ItemsSource="{Binding DataPoints}"
                          Visibility="{Binding ServiceState,
                          Converter={StaticResource EnumToVisibilityConverter},
                          ConverterParameter=ServiceOk}">
            <telerik:RadChart.DefaultView>
                <telerik:ChartDefaultView>
                    <telerik:ChartDefaultView.ChartArea>
                        <telerik:ChartArea>
                            <telerik:ChartArea.AxisX>
                                <telerik:AxisX  IsDateTime="False"
                                                LayoutMode="Auto"
                                                Title="Build"
                                                LabelRotationAngle="55"
                                                Visibility="Visible"/>
                            </telerik:ChartArea.AxisX>
                            <telerik:ChartArea.AxisY>
                                <telerik:AxisY Title="Unique Crashes"
                                               Visibility="Visible" />
                            </telerik:ChartArea.AxisY>
                        </telerik:ChartArea>
                    </telerik:ChartDefaultView.ChartArea>
                </telerik:ChartDefaultView>
            </telerik:RadChart.DefaultView>

[Josh]

After doing some forum searching, I found my answer here.

http://www.telerik.com/community/forums/wpf/chart/x-axis-as-a-string.asp

Thanks

[Petar Kirov]

Hi Josh,

The approach demonstrated on the link is outdated (from 2009). A better way to achieve this is to use the ItemMappings collection of the SeriesMapping to specify an XCategory binding. For example: 

<telerik:RadChart ItemsSource="{Binding DataPoints}">
  <!--DefaultView...-->
  <telerik:RadChart.SeriesMappings>
    <telerik:SeriesMapping>

      <telerik:SeriesMapping.SeriesDefinition>
        <telerik:BarSeriesDefinition/>
      </telerik:SeriesMapping.SeriesDefinition>

      <telerik:SeriesMapping.ItemMappings>
        <telerik:ItemMapping DataPointMember="XCategory" FieldName="Item1"/>
        <telerik:ItemMapping DataPointMember="YValue" FieldName="Item2"/>
      </telerik:SeriesMapping.ItemMappings>
    </telerik:SeriesMapping>
  </telerik:RadChart.SeriesMappings>
</telerik:RadChart>

(Item1 and Item2 are properties of string and int properties of the Tuple respectively.)

 Here you read more about this.

All the best,
Petar Kirov
the Telerik team