Create Visio document programmatically

Creating a New Visio Drawing

Aspose.Diagram for .NET lets you read and create Microsoft Visio diagrams from within your own applications, without Microsoft Office Automation. The first step when creating new documents, is to create a diagram. Then add shapes and connectors to build up the diagram.

Create Visio Drawing Programming Sample

The code below shows to create a new Microsoft Visio drawing. Please note that the blank drawing contains a single empty page.

// 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_LoadSaveConvert();

// Initialize a Diagram class
Diagram diagram = new Diagram();

// Save diagram in the VSDX format
diagram.Save(dataDir + "CreateNewVisio_out.vsdx", SaveFileFormat.VSDX);

The drawing paper size is Letter by default.