// For complete examples and data files, please go to https://github.com/aspose-diagram/Aspose.Diagram-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_VisioComments();

// Load Visio
Diagram diagram = new Diagram(dataDir + "Drawing1.vstx");

// Get collection of the annotations
AnnotationCollection annotations = diagram.Pages.GetPage("Page-1").PageSheet.Annotations;

//Get comment of collection
Annotation an = annotations[0];

// Remove Comment
annotations.Remove(an);

// Save Visio
diagram.Save(dataDir + "RemoveComment_out.vsdx", SaveFileFormat.VSDX);