Attaching the Chart Label by Data Point and Y Value

The two methods, attaching the ChartLabel by data coordinate and attaching the ChartLabel by data point, can be combined so that a ChartLabel is attached to a location whose X-coordinate is specified by a data point and whose Y-coordinate is specified by a chart value. Note that this method is not supported in Pie charts.

To attach the ChartLabel by data point and Y value, set the AttachMethod property to AttachMethodEnum.DataIndexY, and then under the AttachMethodData object set the GroupIndex, SeriesIndex, PointIndex, and Y properties.

To write code in Visual Basic

With C1Chart1.ChartLabels.LabelsCollection(0)
        .AttachMethod = AttachMethodEnum.DataIndex
        .AttachMethodData.GroupIndex = 0
        .AttachMethodData.SeriesIndex = 1
        .AttachMethodData.PointIndex = 2
        .AttachMethodData.Y = 15.8
End With

To write code in C#

C1.Win.C1Chart.Label lab = c1Chart1.ChartLabels.LabelsCollection[0];
lab.AttachMethod = AttachMethodEnum.DataIndex;
lab.AttachMethodData.GroupIndex = 0;
lab.AttachMethodData.SeriesIndex = 1;
lab.AttachMethodData.PointIndex = 2;
lab.AttachMethodData.Y = 15.8;

In this example, the ChartLabel location is specified as follows:

The X-coordinate of the second point in the first data series becomes the X-coordinate of the chart label.
The Y-coordinate specified by the Y property becomes the Y-coordinate of the chart label.

type=note

Note: This method is not supported in Pie charts.

For more information on how to attach the chart label by data point at design time see, Attach by Data Index.

Attaching the Chart Label by Data Point and Y Value

See Also