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Jamie
1175
Showing Data Values on Chart
posted

I have this code

ChartTextAppearance chartText = new ChartTextAppearance();

chartText.Row = chartText.Column = -2;

chartText.Visible = true;

chartText.ItemFormatString = "<DATA_VALUE:0>";

ctrlUltraChart.ColumnChart.ChartText.Add(chartText);

 

but the hard coded reference to ColumnChart will not work for me since I let the user select the chart type, is there any way to set the chart text and let the user select the chart type? Thank you, Jamie

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  • 26458
    Verified Answer
    Offline posted

    Try using reflection to get the ChartTypeAppearance property based on the current chart type:

    PropertyInfo chartAppearancePoperty = ultraChart1.GetType().GetProperty(ultraChart1.ChartType.ToString());
    if (chartAppearancePoperty != null)
    {
       ChartTypeAppearance chartAppearance = chartAppearancePoperty.GetValue(ultraChart1, null) as ChartTypeAppearance;
       PropertyInfo chartTextProperty = chartAppearance.GetType().GetProperty("ChartText");
       if (chartTextProperty != null)
       {
          ChartTextCollection chartTextCollection = chartTextProperty.GetValue(chartAppearance, null) as ChartTextCollection;
          if (chartTextCollection != null)
          {
             chartTextCollection.Add(myChartText);
          }
       }
    }

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