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SLC: show 3rd value when hovering points

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Chart (HTML5)
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Zane
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Zane asked on 21 Feb 2017, 11:01 PM

I am using a Scatter Line Chart to graph XY values from a data set.  These XY points taken from the data set also have a date associated with them.  My code pulls 2 points from the dataset and graphs them to show net XY movement over time.  When a user hovers a data point on the graph to display the XY values, I would also like the tooltip to say what date (or essentially any 'Z' value) is associated with that point.  This Z value is in the data set which I am graphing, but I do not know any way to clearly display the date information so the user knows the point's associated date.  I tried adding a {2} to DataFormatString below, but obviously without a 3rd (DataFieldZ?) Specified, it has nothing to link to.

 

<telerik:RadHtmlChart runat="server" ID="SLCPositionalMultiDevice" Width="1100px" Height="650px" Visible="false">
<PlotArea>
         <Series>
             <telerik:ScatterLineSeries Name="0" DataFieldX="x" DataFieldY="y">
                 <TooltipsAppearance Color="White" DataFormatString="{0}, {1}, {2}"></TooltipsAppearance>
                 <LabelsAppearance Visible="false">
                 </LabelsAppearance>
             </telerik:ScatterLineSeries>
         </Series>
         <XAxis>
             <LabelsAppearance DataFormatString="{0}"></LabelsAppearance>
             <MajorGridLines Width="1"></MajorGridLines>
             <MinorGridLines Visible="false"></MinorGridLines>
         </XAxis>
         <YAxis >
             <LabelsAppearance DataFormatString="{0}mm"></LabelsAppearance>
             <MajorGridLines Width="1"></MajorGridLines>
             <MinorGridLines Visible="false"></MinorGridLines>
         </YAxis>
     </PlotArea>
</telerik:RadHtmlChart>

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Zane
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answered on 23 Feb 2017, 09:17 PM

I found the answer to my own question after about a week and a half and will post it in case someone else runs across this post.  This code displays your x y and z values in tooltip and you z values in labels.  In my case the z values were dates.

<telerik:ScatterLineSeries Name="0" DataFieldX="x" DataFieldY="y">
  <TooltipsAppearance>
   <ClientTemplate>
      (#=dataItem.x#, 
      #=dataItem.y#) <br />
      #= kendo.format(\'{0:g}\', dataItem.NameOfThirdColumn)#
    </ClientTemplate>
 </TooltipsAppearance>
    <LabelsAppearance Visible="true">
     <ClientTemplate>
       #= kendo.format(\'{0:g}\', dataItem.NameOfThirdColumn)#
     </ClientTemplate>
   </LabelsAppearance>
</telerik:ScatterLineSeries>

These two links talk about it.  
http://docs.telerik.com/devtools/aspnet-ajax/controls/htmlchart/functionality/clienttemplate/overview

http://docs.telerik.com/devtools/aspnet-ajax/controls/htmlchart/appearance-and-styling/format-numbers

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Zane
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