I'd like to set the tooltip for the datapoints in a series at the Series level using the DataPointStyle property and format the values using the same manner as I do with labels (http://help.infragistics.com/Help/NetAdvantage/DV/2009.1/CLR3.X/html/SL_DV_xamWebChart_Format_the_Labels_of_an_Axis.html).
But, when I try something like "{}{0:c}" in the ToolTip property, I get that literal value "{}{0:c}" as my tooltip instead of the formatted value. Is there a way to reference the Value of the DataPoint in the DataPointTemplate style? Here's what I'm trying now:<UserControl.Resources> <Style x:Key="DataPointStyle1" TargetType="igChart:BarChartDataPointTemplate"> <Setter Property="ToolTip" Value="{}{0:c}" /> </Style> </UserControl.Resources> <Grid x:Name="LayoutRoot" > <igChart:XamWebChart x:Name="XamWebChart1" > <igChart:XamWebChart.Series> <igChart:Series ChartType="Bar" DataPointStyle="{StaticResource DataPointStyle1}" > <igChart:Series.DataPoints> <igChart:DataPoint Value="50" Label="Mark" /> <igChart:DataPoint Value="40" Label="Joe" /> </igChart:Series.DataPoints> </igChart:Series> </igChart:XamWebChart.Series> </igChart:XamWebChart> </Grid>I tried "{}{Binding Value}" as well, but that also just showed up as the literal string as the tooltip.
Thanks,Keith
Thanks David. Was hoping to be able to do with just a style, but not a huge issue. Makes sense seeing how you'red doing the code.
i don't think it's possible to achieve this using only XAML. when the DataPoint.ToolTip property is set, the chart simply attaches it using code like this:
TooltipService.SetTooltip(uielement, theDataPoint.Tooltip)
hence no formatting is possible.
I think the best way to solve this problem is by using C#:
foreach (DataPoint point in mySeries.DataPoints)
{
point.Tooltip = new TextBlock() { Text = point.Value.ToString("0:c") };
}