In a coordinate attachment the label can be attached anywhere on the chart. The number of pixels between the top-left corner of the chart to the ChartLabel can be specified.

To attach a ChartLabel to a pixel coordinate, set the AttachMethod property to AttachMethodEnum.Coordinate, and then under the AttachMethodData object set the X and the Y properties to the coordinates at which the ChartLabel is to be attached. For example, the following attaches a ChartLabel to the coordinates specified:

To write code in Visual Basic

With C1Chart1.ChartLabels.LabelsCollection(0)
    .AttachMethod = AttachMethodEnum.Coordinate
    .AttachMethodData.X = 250
    .AttachMethodData.Y = 250
End With

To write code in C#

C1.Win.C1Chart.Label lab = c1Chart1.ChartLabels.LabelsCollection[0];
lab.AttachMethod = AttachMethodEnum.Coordinate;
lab.AttachMethodData.X = 250;
lab.AttachMethodData.Y = 250;

For more information on how to attach the chart label by pixel coordinate at design time see, Attach By Coordinate.