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Richard Carlin
1255
How to reference the item under the mouse in a custom tooltip
posted

When I am building a custom tooltip in the column series (or any series) how do i get a reference to the data associated with the point under the mouse

<ColumnSeries Name="@series.Name"
                                  XAxisName="@series.XAxisName"
                                  YAxisName="@series.YAxisName"
                                  MarkerType="MarkerType.None"
                                  Brush="@series.Brush"
                                  Outline="@series.Brush"
                                  Thickness="@series.Thickness"
                                  DataSource="@series.SeriesData"
                                  ValueMemberPath="@series.ValueMemberPath"
                                  Title="@series.Title"
                                  ShowDefaultTooltip="true"
                                  MouseOverEnabled="true">
                        <TooltipTemplate>
                            <div style="width: 200px; height: 70px;">
                                <span>How do I reference the data object under the mouse</span>
                            </div>
                        </TooltipTemplate>

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  • 29085
    Offline posted

    Hello, 

    To access the item you can use this code and use the Context object:


    <TooltipTemplate>
                @{ var data = context.Item as FilmFranchiseInfo;
                <span>
                    @data.Franchise
                </span> }
 </TooltipTemplate>

    Now, an alternate way to write a TooltipTemplate is to use SeriesMouseEnterScript event and use JS to write your own template. 

    tooltip-template.zip

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