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StackedBar100SeriesDefinition tooltip

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2 posts, 0 answers

Jingying Wu

22 posts

Member since:
Jul 2009

Posted 29 Jul 2009 Link to this post

I'm using 2 StackedBar100SeriesDefinition, one for pass, one for fail.
How do i show on the tooltip that the percentage of pass and fail?

Dwight

Admin

475 posts

Posted 31 Jul 2009 Link to this post

Hi Jingying Wu,

Currently, the chart does not support such formatting. Here is a work-around you can use:

    
            public Page() 
        
            { 
        
                InitializeComponent(); 
        
                this.RadChart1.DefaultView.ChartArea.ItemToolTipOpening += new ItemToolTipEventHandler(ChartArea_ItemToolTipOpening); 
        
            } 
        
            private void ChartArea_ItemToolTipOpening(ItemToolTip2D tooltip, ItemToolTipEventArgs e) 
        
            { 
        
                DataSeriesCollection series = this.RadChart1.DefaultView.ChartArea.DataSeries; 
        
                double sum = 0; 
        
                for (int i = 0; i < series.Count; i++) 
        
                { 
        
                    if (series[i].Count > e.ItemIndex) 
        
                        sum += series[i][e.ItemIndex].YValue; 
        
                } 
        
                tooltip.Content = string.Format("{0:p2}",e.DataPoint.YValue / sum); 
        
            }

Let me know if you need further assistance.

Kind regards,
Evtim
the Telerik team

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