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2660
xamDataChart StackedcolumnSeries custom Tooltip
posted

Hello,

I would like to use a custom tooltip for the stackedcolumnseries, but it seems not to work, although I tried it as suggested in other posts.

The item object is not haveing the right object information. It doesn't represent the item of the ItemsDataSource.

This is the error I get:

System.Windows.Data Error: 40 : BindingExpression path error: 'GroupId' property not found on 'object' ''5b61ea55-ba58-4112-a5dd-99d6c7f7c7ef__proxy' (HashCode=56811240)'. BindingExpression:Path=Item.GroupId; DataItem='DataContext' (HashCode=15915816); target element is 'Run' (HashCode=45754591); target property is 'Text' (type 'String')
System.Windows.Data Error: 40 : BindingExpression path error: 'Value' property not found on 'object' ''5b61ea55-ba58-4112-a5dd-99d6c7f7c7ef__proxy' (HashCode=56811240)'. BindingExpression:Path=Item.Value; DataItem='DataContext' (HashCode=15915816); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')

<UserControl.Resources>
        <DataTemplate x:Key="tooltipTemplate">
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>
                <Grid.RowDefinitions>
                    <RowDefinition/>
                    <RowDefinition/>
                </Grid.RowDefinitions>

                <TextBlock Grid.Row="0" Grid.Column="0" Margin="0,0,5,0">
                                <Run Text="Valve Nr"/><Run Text=":"/>
                </TextBlock>
                <TextBlock Grid.Row="0" Grid.Column="1">
                                <Run Text="{Binding Path=Item.GroupId}"/>
                </TextBlock>

                <TextBlock Grid.Row="1" Grid.Column="0" Margin="0,0,5,0">
                                <Run Text="{Binding Path=Series.Title}"/><Run Text=":"/>
                </TextBlock>
                <TextBlock Grid.Row="1" Grid.Column="1" Text="{Binding Path=Item.Value}" />
            </Grid>
        </DataTemplate>
    </UserControl.Resources>

<ig:XamDataChart.Series>
                <ig:StackedColumnSeries ItemsSource="{Binding ChartItemsGroup}"
                                        XAxis="{Binding ElementName=xAxis}"
                                        YAxis="{Binding ElementName=yAxis}"                             
                                        AutoGenerateSeries="True" Legend="{Binding ElementName=Legend}"
                                        SeriesCreated="StackedColumnSeries_SeriesCreated">
                    <ig:StackedColumnSeries.ToolTip>
                        <Grid>
                            <ContentPresenter Content="{Binding}" ContentTemplate="{StaticResource tooltipTemplate}"/>
                        </Grid>
                    </ig:StackedColumnSeries.ToolTip>
                </ig:StackedColumnSeries>
            </ig:XamDataChart.Series>

Where .Value and .GroupId are the properties of my object.

www.infragistics.com/.../custom-series-with-data-point-tracker