I have tried these lines but it’s not work for me.
visioDiagram = new Aspose.Diagram.Diagram(streamReader.BaseStream);
and
visioDiagram = new Aspose.Diagram.Diagram(streamReader.BaseStream,LoadFileFormat.Vdx);
Blank …...supported" error when trying to load VDX file in Aspose Diagram using...Diagram(streamReader.BaseStream,LoadFileFormat.Vdx); Blank Diagram (1).zip (7.0...