Represents the drop lines in a chart group.
Assembly: Microsoft.Office.Interop.PowerPoint (in Microsoft.Office.Interop.PowerPoint.dll)
Drop lines connect the points in the chart with the x-axis. Only line and area chart groups can have drop lines. This object is not a collection. There is no object that represents a single drop line; you either enable drop lines for all points in a chart group or you disable them.
If the HasDropLines property is false, most properties of the object are disabled.