ActiveReports 16 .NET Edition
ActiveReports 16 User Guide / Concepts / Page Report/RDL Report Concepts / Toolbox / Chart / Rules / Customize Chart Appearance / TooltipTemplate
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    The TooltipTemplate target property allows you to display tooltips in the Web Viewer and specify the tooltip format for the chart data that meets the condition of a rule.

    Let's say that you have a chart with a rule to mark data below 110 and you want the chart to display a tooltip for this marked data. To do this, you can add a rule with the following settings.

    Property Value
    RuleDesigner Collection Editor > Condition =Chart!CurrentData<110
    RulePropertyDesigner Collection Editor > TargetProperty TooltipTemplate
    RulePropertyDesigner Collection Editor > Value {valueField.value}

    At preview, you will see Sales with the data below 110 display tooltips. These tooltips display data values according to the rule you have just set.

    Chart Rules ToolTip Template