Create VDX Documents via C#

Native and high performance VDX (Portable Document Format) creation programmatically using server side .NET APIs.

Generating VDX file dynamically within running application is easy. In order to create VDX documents from scratch without requiring MS Office, we’ll use

Aspose.Diagram for .NET

API that offers different features for visio creation, manipulation and conversion using .NET platform. Developers can easily enhance code for writing data, generating shapes or graphs.

How to Create VDX via C#

It is easy for the developers to create, load, modify and convert VDX within running different reporting applications for data processing in just a few lines of code.

Include the namespace in your class file
Create Diagram class instance.
Access the first page of the diagram.
Add text in the page.
Use Save method to save the diagram as VDX file.

System Requirements

Just make sure that system have Microsoft Windows or a compatible OS with .NET Framework, .NET Core, Windows Azure, Mono Platforms as well as development environment like Microsoft Visual Studio.

Install from command line as nuget install Aspose.Diagram or via Package Manager Console of Visual Studio with Install-Package Aspose.Diagram.
Alternatively, get the offline MSI installer or all DLLs in a ZIP file from downloads

Following source code shows how to create a VDX file using C#.
// Create Diagram class instance.
Diagram diagram = new Diagram();

// Access the first page of the diagram.
Page page = diagram.Pages[0];

// Add Text shape.
Shape shape = page.AddText(1, 1, 1, 1, "Test text", "Calibri", "#a5a5a5", 0.25);

// Save the Diagram as .vdx file.
diagram.Save("out.vdx",SaveFileFormat.VDX);

An Visio Programming Library capable of building cross-platform applications with the ability to generate, modify, convert, render and print VDX files. .NET Visio API not only convert between spreadsheet formats, it can also render Visio files as images, VDX, HTML and more, thus making it a perfect choice to exchange documents in industry-standard formats.

VDX What is VDX File Format?

Any drawing or chart created in Microsoft Visio, but saved in XML format have .VDX extension. A Visio drawing XML file is created in Visio software, which is developed by Microsoft. Microsoft Visio has the capability to generate visual documents that can be used in presentations and documents. The Visio drawing XML file contains the visual objects and metadata details of the visual elements. Text can also be added to these visual elements Vision drawing XML file. These Visio drawing XML files are integrated with XML-based formatting standards and image data encoding specifications that allow its content to be rendered and stored by the Microsoft Visio software in the VDX file format.

Other Supported Visio Generation

You can also create other Microsoft Visio formats including few listed below.

VSSX (Visio stencil File)

VSTX (Visio template File)

VSDM (Visio macro-enabled drawing File)

VSSM (Visio macro-enabled stencil File)

VSTM (Visio macro-enabled template File)

VSDX (Visio drawing File)