If you want to draw a line mixed with dashed and non-dashed lines, set the value of the lineStyle attribute to "dashLine" and use the dashLineSeperatePos and dashLinePlacement attributes to locate the starting position of the dashed line in the <Line2DSeries> element tag.
... <Line2DSeries ... lineStyle="dashLine" dashLinePattern="4" dashLineSeperatePos="8" dashLinePlacement="after" ... > ... </Line2DSeries> ...
|dashLineSeperatePos||The dashLineSeperatePos attribute determines the boundary position between the dashed line and the non-dashed line. The default value is the first data element, 0.|
|dashLinePlacement||The dashLinePlacement attribute determines the placement of the dashed line ( before or after the position of dashLineSeperatePos ). The valid values are before and after. The default value is before.|