Aspose.Diagram 21.9.0

.NET API for Microsoft Visio® File Formats

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Aspose.Diagram for .NET API is a solution for Microsoft Visio® file manipulation requirements. It allows the .NET applications to read, write, export, and process Microsoft Visio® diagrams while supporting all Visio® objects & properties including shapes, pages, images, shape masters, stencils, text, layers, header, footers, user-defined cells, hyperlinks, file protection, geometries, text boxes, and comments.

Aspose.Diagram for .NET can also be used to apply protection to the Microsoft Visio® drawings by locking backgrounds, stencils (master) as well as shapes and styles to avoid any accidental amendments.

What is Aspose.Diagram for .NET?

Aspose.Diagram for .NET on premise API enables your .NET applications easily interact with the Microsoft Visio Object Model. This empowers your applications to create, read, write, export, print, and convert VSD, VSS, VDW, VST and other Visio file formats to PDF, XPS, SVG, HTML, PNG, JPEG, EMF, TIFF, SWF, XAML, etc, without installing Microsoft Visio or any other 3rd party software.

Aspose.Diagram for .NET is written entirely in C# and contains only managed code. Aspose.Diagram.dll is CLS compliant. Any type of 32-bit or 64-bit .NET application, including, ASP.NET, Web Services and WinForms can be developed using Aspose.Diagram for .NET classes.

Aspose.Diagram for .NET API supports all Visio objects & properties including shapes, pages, images, shape masters, stencils, text, layers, header, footers, user-defined cells, hyperlinks, file protection, geometries, text boxes, and comments. Developers can also apply protection to the Microsoft Visio drawings by locking backgrounds, stencils (master) as well as shapes and styles to avoid any accidental amendments.

Visio® File Processing Features

• Create Microsoft Visio® diagrams from scratch via API.
• Read or write Microsoft Visio® drawings.
• Export Visio® diagrams to various popular formats including PDF, images, HTML and more.
• Print Visio® diagrams on a physical or virtual printer.
• Access Visio® diagram properties for manipulation or just inspection.
• Protect Visio® diagrams via applying locks on various levels.
• Manipulate the embedded OLE objects in the Visio® diagrams.

Supported Read & Write Visio® Formats

Microsoft Visio®: VSDX, VDX, VSX, VTX, VSSX, VSTX, VSDM, VSSM, VSTM

Save Visio® Diagrams As

Fixed Layout: PDF, XPS
Vector: SVG
Metafile: EMF
Image: JPEG, PNG, BMP, TIFF
Markup: HTML, XAML
Other: SWF

Supported Read Visio® Formats

Microsoft Visio®: VSD, VDW, VSS, VST

Platform Independence

You can use Aspose.Diagram for .NET to build any type of a 32-bit or 64-bit .NET application including ASP.NET, WCF, WinForms, UWP, .NET Standard, .NET Core etc. You can also use Aspose.Diagram for .NET to build applications with Mono.

Get Started

Are you ready to give Aspose.Diagram for .NET a try? Simply execute Install-Package Aspose.Diagram from Package Manager Console in Visual Studio to fetch the NuGet package. If you already have Aspose.Diagram for .NET and want to upgrade the version, please execute Update-Package Aspose.Diagram to get the latest version.

Load a VSS Template to Create a Visio® Diagram with C# Code

You can execute the below code snippet to see how Aspose.Diagram API performs in your own environment or check the GitHub Repository for other common usage scenarios.

// create a new diagram
var diagram = new Diagram(dataDir + "template.vss");
// add a new rectangle shape
long shapeId = diagram.AddShape(4.25, 5.5, 2, 1, @ "Rectangle", 0);
var shape = diagram.Pages[0].Shapes.GetShape(shapeId);
shape.Text.Value.Add(new Txt(@ "Rectangle text."));
// add a new hexagon shape
shapeId = diagram.AddShape(7.0, 5.5, 2, 2, @ "Hexagon", 0);
shape = diagram.Pages[0].Shapes.GetShape(shapeId);
shape.Text.Value.Add(new Txt(@ "Hexagon text."));
// save the diagram in VDX format
diagram.Save(dir + "output.vdx", SaveFileFormat.VDX);

Retrieve Layers of a Visio® VSDX Diagram

Aspose.Diagram for .NET allows .NET applications to work with layers of Visio® drawings. The following C# code example shows how to fetch all the layers of a VSDX file:

// load source Visio® diagram
var diagram = new Diagram(dataDir + "Drawing1.vsdx");
// get diagram page
var page = diagram.Pages.GetPage("Page-1");
// iterate through the layers and print properties
foreach(Layer layer in page.PageSheet.Layers) {
  Console.WriteLine("Name: " + layer.Name.Value);
  Console.WriteLine("Visibility: " + layer.Visible.Value);
  Console.WriteLine("Status: " + layer.Status.Value);
}

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