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Dobrý den,

Mam graf, kde kazda LineSeries ma jiný PolylineStyle(jinou barvu a čárkování - StrokeDashArray). Problem je, že v legende grafu nevidím jaky je styl te čáry, protoze se nezobrazuje čara. Vytvoril jsem si proto vlastní styl pro LegendItem, jen nevim jak mu predat v kodu hodnotu StrokeDashArray.

xaml:

<Style x:Key="DashedLegendItem" TargetType="chartingToolkit:LegendItem">
            <Setter Property="Foreground" Value="#FF000000" />
            <Setter Property="Padding" Value="5,0,5,0" />
            <Setter Property="Margin" Value="0,3,0,2" />
            <Setter Property="Template" >
                <Setter.Value>
                    <ControlTemplate TargetType="chartingToolkit:LegendItem">
                        <Grid x:Name="PART_MainContainer" HorizontalAlignment="Stretch" VerticalAlignment="Top">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="Auto" />
                                <ColumnDefinition />
                            </Grid.ColumnDefinitions>
                            <Line Name="MyLine" />
                            <TextBlock Grid.Column="1"
                        Padding="{TemplateBinding Padding}"
                        Margin="{TemplateBinding Margin}"
                        Foreground="Black"
                        Text="{TemplateBinding Content}" />

                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

protected void CreateSeriesStyles(LineSeries series, int stylepor)
        {
            //Create line style
            Style style = new Style(typeof(Polyline));
            Setter st = new Setter(Polyline.StrokeDashArrayProperty, this.lineStyle[stylepor]);
            style.Setters.Add(st);
            series.PolylineStyle = style;
            //create datapoint style
            style = new Style { TargetType = typeof(LineDataPoint), BasedOn = this.Resources["DataPoinWDesc"] as Style };
            SolidColorBrush brush = colorGenerator.GetNextBrush();
            style.Setters.Add(new Setter { Property = Control.BackgroundProperty, Value = brush });
            series.DataPointStyle = style;
            //create legend item style
            style = new Style { TargetType = typeof(LegendItem), BasedOn = this.Resources["DashedLegendItem"] as Style };
            style.Setters.Add(new Setter(LegendItem.ForegroundProperty, brush));
            //nastaveni Line.StrokeDashArray


            series.LegendItemStyle = style;
        }

Vedel by nekdo jak na to? Diky.