Serving a word document generated using Open XML from an asp.net webpage

Question

I'm trying to serve a word document (docx) from an asp.net page using the following code

    protected void Page_Load(object sender, EventArgs e)
    {

        MemoryStream document = new MemoryStream();
        using (WordprocessingDocument wordDoc = WordprocessingDocument.Create(document, WordprocessingDocumentType.Document))
        {
            MainDocumentPart mainPart = wordDoc.AddMainDocumentPart();
            SetMainDocumentContent(mainPart);
        }

        string fileName = "MsWordSample.docx";
        Response.AppendHeader("Content-Type", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
        Response.AppendHeader("Content-disposition", "attachment; filename=" + fileName);
        Response.OutputStream.Write(document.ToArray(), 0, document.ToArray().Length);
    }

    public static void SetMainDocumentContent(MainDocumentPart part)
    {
        const string docXml =
         @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?> 
        <w:document xmlns:w=""http://schemas.openxmlformats.org/wordprocessingml/2006/main"">
        <w:body>
            <w:p>
                <w:r>
                    <w:t>Hello world!</w:t>
                </w:r>
            </w:p>
        </w:body>
        </w:document>";

        using (Stream stream = part.GetStream())
        {
            byte[] buf = (new UTF8Encoding()).GetBytes(docXml);
            stream.Write(buf, 0, buf.Length);
        }
    }

but I get the following message when trying to open the file: "the file {file name} cannot be opened because there are problems with the content"

I then get an option to recover the document which actually fixes the document.

Am I leaving something out?

`Response.End()` fixed my identical issue. Thanks @Fikre – CoderMarkus Oct 31 '12 at 19:49 — CoderMarkus, Oct 31 '12 at 19:49

score 0 · Accepted Answer · answered Jul 11 '11 at 11:57

0

That error message you're getting means the underlying XML doesn't conform to the schema in some way. This could be caused by having elements in the wrong order, forgetting a parent to an element, adding a wrong attribute, forgetting required elements, etc. I recommend downloading the Open XML SDK 2.0 Productivity Tool, create a test file, and then opening that up to see what the XML should be. Then compare that file to the one you are creating to see what is missing.

answered Jul 11 '11 at 11:57

amurra

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Another helpful tools is the `OpenXmlValidator`. It will show you all the errors in your XML structure. HUGE help in my development. – CoderMarkus Oct 31 '12 at 19:48
You're right, and the reason for the invalid XML is that I forgot to add Response.End() – Fikre Aug 15 '13 at 07:26

Serving a word document generated using Open XML from an asp.net webpage

1 Answers1