putting strings in the Xaxis of the radChart

[Iheb]

when my X Axis is of a time int it works perfectly. But when i put it as a string an error occurs("Input string was not in a correct format")

My XAML is like this

<telerik:RadChart Name="radChartCAMois">
                        <telerik:RadChart.SeriesMappings>
                            <telerik:SeriesMapping LegendLabel="Chiffre d'affaire en DT">
                                <telerik:SeriesMapping.SeriesDefinition>
                                    <telerik:Area3DSeriesDefinition/>
                                </telerik:SeriesMapping.SeriesDefinition>
                                <telerik:SeriesMapping.ItemMappings>
                                    <telerik:ItemMapping DataPointMember="XValue" FieldName="IntValue"></telerik:ItemMapping>
                                    <telerik:ItemMapping DataPointMember="YValue" FieldName="StringValue"></telerik:ItemMapping>
                                </telerik:SeriesMapping.ItemMappings>
                            </telerik:SeriesMapping>
                        </telerik:RadChart.SeriesMappings>
                    </telerik:RadChart>

and my code behing is like this

List<MyClass> a = new List<MyClass>{new MyClass{intValue = 1,stringValue = "s1"},new MyClass{intValue = 2,stringValue = "s2"}};
radChartCAMois.ItemsSource = a;

where MyClass is like this

class MyClass
    {
        public int intValue;
        public string stringValue;
    }

[Iheb]

Come on Telerik please. Its not a difficult question :(

[Petar Kirov]

Hi Iheb,

The reason for the exception you are getting is that a YValue ItemMapping should always map to a numeric value. If you need to create a categorical chart (map numeric values to strings) then you need to use XCategory (instead of XValue) ItemMapping to the" StringValue" property of your "MyClass" class and YValue ItemMapping to the "intValue".
 
Regards,
Petar Kirov
the Telerik team

[Filander]

Hi! i have the same property but miy propertys are fine.

I have this in XAML : 

<telerik:RadChart x:Name="RadChartCel1" Margin="766,162,10,70">
                    <telerik:RadChart.SeriesMappings>
                        <telerik:SeriesMapping LegendLabel="Maquinas">
                            <telerik:SeriesMapping.SeriesDefinition>
                                <telerik:BarSeriesDefinition></telerik:BarSeriesDefinition>
                            </telerik:SeriesMapping.SeriesDefinition>
                            <telerik:SeriesMapping.ItemMappings>
                                <telerik:ItemMapping DataPointMember="XValue" FieldName="Machine"></telerik:ItemMapping>
                                <telerik:ItemMapping DataPointMember="YValue" FieldName="Produced"></telerik:ItemMapping>
                            </telerik:SeriesMapping.ItemMappings>
                        </telerik:SeriesMapping>
                    </telerik:RadChart.SeriesMappings>
                </telerik:RadChart>

And i have that in code behind:

RadChartCel1.ItemsSource = ColeccionMaquinas.Where(r => r.SubGroup == 1 && r.Tipo == 1).Select(t => new MyClass { Machine = t.Machine, Produced= (int)t.Produced}).ToList();

 public class MyClass
 {
     public string Machine{ get; set; }
     public int Produced{ get; set; }
 }

And i try just

RadChartCel1.ItemsSource = new  { Maquina = "Machine", Producido = 9000 };

And Nothing !! help me Please, i dont know how to solve this issue.

i hope your help,

Edax Ucles - Silverlight Developer

[Nikolay]

Hello,

 You should map your string property to XCategory, this is how the mapping should look : 

<telerik:SeriesMapping.ItemMappings>
                                <telerik:ItemMapping DataPointMember="XCategory" FieldName="Machine"></telerik:ItemMapping>
                                <telerik:ItemMapping DataPointMember="YValue" FieldName="Produced"></telerik:ItemMapping>
                            </telerik:SeriesMapping.ItemMappings>

Regards,
Nikolay
Telerik

[Filander]

Thanks a lot !! 

Best Regards!

Edax Ucles - Silverlight Developer