wpf - Problem with binding Stacked colums series chart to Series -

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i have big problem binding stacked column series chart.

i have public observablecollection series property in viewmodel , try many ways still not working.

this code viewmodel prepare series: private void drawchart() { this.series.clear();

        var datavalues = new list<list<simpledatavalue>>();          int wartoscniezalezna = 1;          (int = 0; < 2; i++)         {             datavalues.add(new list<simpledatavalue>());         }          foreach (var item in mycollection)         {             var param = someparam;              datavalues[0].add(new simpledatavalue { independentvalue = "czujnik " + wartoscniezalezna, dependentvalue = 100 });             //czerwone             datavalues[1].add(new simpledatavalue { independentvalue = "" + wartoscniezalezna, dependentvalue = 200 });              wartoscniezalezna++;          }         var stackedseries = activator.createinstance(typeof(stackedcolumnseries)) definitionseries;          int itemnr=0;         foreach (var item in datavalues)         {             var definicja = new seriesdefinition();             if(itemnr==0)             definicja.title = "stan 1";             else                 definicja.title = "stan 2";             definicja.dependentvaluepath = "dependentvalue";             definicja.independentvaluepath = "independentvalue";             definicja.tooltip = "asdas";             definicja.itemssource = item;             stackedseries.seriesdefinitions.add(definicja);             itemnr++;         }        series.add(stackedseries);     }

i cant bind to:

    <charting:chart x:name="mychart"  padding="10,10,10,10">         <charting:chart.series>             <charting:stackedcolumnseries>                 <charting:seriesdefinition itemssource="{binding series}" dependentvaluepath="dependentvalue" independentvaluepath="independentvalue">                 </charting:seriesdefinition>             </charting:stackedcolumnseries>         </charting:chart.series>     </charting:chart>

i trying seriesdefinitions collection , others. grateful help.

i hope i've answered question there

anyway post second part of answer here:

mainwindow.xaml:

<charting:chart x:name="mychart"  padding="10,10,10,10">     <charting:chart.series>         <charting:stackedcolumnseries>             <charting:seriesdefinition title="stan 1" itemssource="{binding firstcollection}" dependentvaluepath="dependentvalue" independentvaluepath="independentvalue" />             <charting:seriesdefinition title="stan 2" itemssource="{binding secondcollection}" dependentvaluepath="dependentvalue" independentvaluepath="independentvalue" />         </charting:stackedcolumnseries>     </charting:chart.series> </charting:chart>

mainwindow.xaml.cs

public partial class mainpage : usercontrol {     public mainpage()     {         initializecomponent();         this.mychart.datacontext = new chartmodel         {             firstcollection = enumerable.range(1, 10).select(i => new simpledatavalue { independentvalue = "czujnik " + i, dependentvalue = 100 }).tolist(),             secondcollection = enumerable.range(1, 10).select(i => new simpledatavalue { independentvalue = "" + i, dependentvalue = 200 }).tolist()         };      } }  public class simpledatavalue {     public string independentvalue { get; set; }     public int dependentvalue { get; set; } }  public class chartmodel {     public list<simpledatavalue> firstcollection { get; set; }     public list<simpledatavalue> secondcollection { get; set; } }

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