Hi,

I am getting an error when trying to open an exported Visio file.
No errors occur during the actual export; only when I try to open it with Visio 2003.  The text of the error message is:

"Visio is unable to open the XML file.  It does not contain valid XML.
File: xxx
Line, Column: 142,3
Error: Incorrect document syntax."

I have attached a zip file that contains the following:
- An XML export of the diagram
- A PDF export
- A VDX export
- A screenshot of the Visio error

Any suggestions?
This appears to be happening for all of my diagrams.

Thanks in advance.

Jim

Hi Stoyan,

Thanks for the quick reply.
I looked more closely at the vdx file and you're right.
It appears that code from our Master page is appended to the Visio XML content.  But I'm confused how that could have gotten there.

Here is the code that generates the Visio export file.
As you can see, after calling your Export method, there is no further manipulation of the file.

Any thoughts?

Thanks

Jim

protected void Export2Visio()
    {
        Diagram diagram;
        string fullUrl = Request.Url.ToString();
        string hostUrl = fullUrl.Substring(0, fullUrl.LastIndexOf("/"));

        diagram = DiagramView1.Diagram;
        MindFusion.Diagramming.Export.VisioExporter visio = new MindFusion.Diagramming.Export.VisioExporter();
        visio.TemplatePath = Server.MapPath(@"~\Bin\visioExport.vxt");
        visio.ExportLanes = ExportLanes.Horizontal;
        visio.LaneGridTitle = Session["P_CFFD_CurrentActivityName"].ToString();

        String filename = CleanFileName(Session["P_CFFD_CurrentActivityName"].ToString()) + " - " + DateTime.Now.ToString("ddMMMyyyy-HHmm-ss") + ".vdx";
        visio.Export(diagram, Server.MapPath(@"~\ExternalDocs\") + filename);

        //
        // The following will cause the browser to open a dialog asking the user to Save, or potentially Open the file
        // The AppendHeader allows us to specify the filename without the leading server path info
        //
        Response.ContentType = "application/vnd.ms-visio";
        Response.AppendHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");
        Response.TransmitFile(Server.MapPath(@"~\ExternalDocs\") + filename);
    }

If you open the exported file on the server file system, does it show the appended content? I suppose it is added at download time, if the aspx page whose Export2Visio method exports the file has a MasterPage attribute applied. In such case, try removing the attribute, or move the export method to a different page that doesn't load a master.

I hope that helps,
Stoyan