Microsoft® Visio File Splitting via .NET

Split single Visio document into different files using C# code within .NET based applications

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.NET Visio Library is capable to split Visio document into multiple pages within .NET based applications. Supported file formats include VDW, VDX, VSD, VSDM, VSDX, VSS, VSSM,VSSX,VST,VSTM,VSTX,VSX,VTX.

Split Visio Document into Multiple Files

The simplest way to split Visio files page wise is, Accessing all pages via pages , Iterating through each page and calling the Copy method. Finally saving it into a specified path.

  • Load the Visio file with full path using diagram class .
  • Iterate throug each page
  • Create a new Diagram class object
  • Copy the page via Copy method
  • Call the Save() method and pass the file name (full path) having relevant SaveFormat.
C# Code to Split Visio Files
// 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_VisioPages();

// Initialize the new visio diagram
Diagram NewDigram = new Diagram();

// Load source diagram
Diagram dgm = new Diagram(dataDir + "Drawing1.vsdx");
// Add all masters from the source Visio diagram
foreach (Master master in dgm.Masters)
    NewDigram.Masters.Add(master);

// Get page object
Aspose.Diagram.Page SrcPage = dgm.Pages.GetPage("Page-1");
// Set name
SrcPage.Name = "new page";

// It calculates max page id
int max = 0;
if (NewDigram.Pages.Count != 0)
    max = NewDigram.Pages[0].ID;

for (int i = 1; i < NewDigram.Pages.Count; i++)
{
    if (max < NewDigram.Pages[i].ID)
        max = NewDigram.Pages[i].ID;
}
            
// Set max page ID 
int MaxPageId = max;
// Set page ID
SrcPage.ID = MaxPageId + 1;

// Add page from the source diagram
NewDigram.Pages.Add(SrcPage);
// Remove first empty page
NewDigram.Pages.Remove(NewDigram.Pages[0]);
// Save diagram
NewDigram.Save(dataDir + "CopyVisioPage_out.vsdx", SaveFileFormat.VSDX);