I'm binding my xamchart of type Area to a list containing 3 values which are months,balance and interest.
I have set the Datamapping as Value=Balance and Label = Month.
I want the tooltip on the datapoint to show balance aswell as interest. I know i can set the ToolTip = Interest in Datamapping, but i also want to show the Balance. Is there anyway by which i can access the datasource from the tooltip's datatemplate and then display all the values.I tried some options like the one below but didnt work.
Please help.
Thanks.
<!-- Chart Series -->
<igCA:XamChart.Series>
<igCA:Series ChartType="Area"
DataMapping="Value=Balance;Label=Month;ToolTip=Interest">
</igCA:Series>
</igCA:XamChart.Series>
<!-- ToolTip Style-->
<Style TargetType="ToolTip">
<Setter Property="FontSize" Value="15" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToolTip">
BorderThickness="1"
Background="LightGray">
<Grid DataContext="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type igCA:Series}}}">
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Style="{StaticResource TextBlockStyle}"
Grid.Row="0"
Grid.Column="0"
Text="Account Balance:"/>
<Label Style="{StaticResource DollarLabelStyle}"
Grid.Column="1"
Content="{Binding Balance}"/>
Grid.Row="1"
Text="Interest Amount:"/>
Content="{Binding Interest}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
You can also load the data in code and then you can format the tooltip any way you want...
foreach (TPoint tp in tv.TPointList) { DataPoint dp = new DataPoint(); dp.ChartParameters.Add(ChartParameterType.ValueX, tp.X); dp.ChartParameters.Add(ChartParameterType.ValueY, tp.Y); dp.ToolTip = chartVector.VariableReference + "\r\nDate:" + tp.X.ToShortDateString() + "\r\nY:" + tp.Y.ToString(); series.DataPoints.Add(dp); }
that is an interesting approach, but I'm afraid it won't work because the DataContext is never set on the tooltip objects that get created by the chart.
you can make a feature request here: http://devcenter.infragistics.com/protected/requestfeature.aspx
the only workaround I can think of is to add a string property on your data objects that return the full tooltip string, and add that new property to your DataMapping.