Update shape properties in VSTO and Aspose.Diagram


VSTO lets you program with Microsoft Visio files. To update shape properties:

  1. Create a Visio application object.
  2. Make the application object invisible.
  3. Open an existing Visio VSD file.
  4. Find the required shape.
  5. Update the shape properties (text, text style, position and size).
  6. Save the file as VDX.
 Visio.Application vsdApp = null;

Visio.Document vsdDoc = null;



	//Create Visio Application Object

	vsdApp = Application;

	//Make Visio Application Invisible

	vsdApp.Visible = false;

	//Create a document object and load a diagram

	vsdDoc = vsdApp.Documents.Open( "Drawing.vsd");

	//Create page object to get required page

	Visio.Page page = vsdApp.ActivePage;

	//Create shape object to get required shape

	Visio.Shape shape = page.Shapes["Process1"];

	//Set shape text and text style

	shape.Text = "Hello World";

	shape.TextStyle = "CustomStyle1";

	//Set shape's position

	shape.get_Cells("PinX").ResultIU = 5;

	shape.get_Cells("PinY").ResultIU = 5;

	//Set shape's height and width

	shape.get_Cells("Height").ResultIU = 2;

	shape.get_Cells("Width").ResultIU = 3;

	//Save file as VDX



catch (Exception ex)






	//Close active document and quit





When programming with Aspose.Diagram, you do not need Microsoft Visio on the machine, and you can work independently of Microsoft Office Automation. To update shape properties with Aspose.Diagram for .NET:

  1. Open an existing Visio VSD file.
  2. Find the required shape.
  3. Update the shape properties (text, text style, position and size).
  4. Save the file as VDX.
 	//Save the uploaded file as PDF

	Diagram diagram = new Diagram("Drawing1.vsd");

	//Find a particular shape and update its properties

	foreach (Aspose.Diagram.Shape shape in diagram.Pages[0].Shapes)


		if (shape.Name.ToLower() == "process1")



			shape.Text.Value.Add(new Txt("Hello World"));

			//Find custom style sheet and set as shape's text style

			foreach (StyleSheet styleSheet in diagram.StyleSheets)


				if (styleSheet.Name == "CustomStyle1")


					shape.TextStyle = styleSheet;



			//Set horizontal and vertical position of the shape

			shape.XForm.PinX.Value = 5;

			shape.XForm.PinY.Value = 5;

			//Set height and width of the shape

			shape.XForm.Height.Value = 2;

			shape.XForm.Width.Value = 3;



	//Save shape as VDX

	diagram.Save("Drawing1.vdx", SaveFileFormat.VDX);


catch (Exception ex)




Download Sample Code