Export chart to the given image format, with the extended settings. See ChartExportOptions properties for a description of settings. If FilePath given in Options is empty, the Bitmap object is returned. Else chart is exported to the given file and the method returns a null.

Export the chart and save to a file, in the specified image format and size. If FilePath given is empty, the image object (Bitmap) is returned, ignoring the ExportFormat, else returns a null.