Specifies how the XRSparkline control should be internally rendered in a report.
The control is rendered as a bitmap. In this case the quality of the rendered image is sometimes poor, but it allows a control to be drawn more precisely.
The control is rendered as a metafile. In this case the quality of the rendered image is always good, but in some cases some details of the control may be lost.
Use this enumeration's members to determine whether the specified XRSparkline control should be rendered as an image or as a metafile in a report. This enumeration is used by the XRSparkline.ImageType property.