create word document with Open XML

Question

I am creating a sample handler to generate simple Word document.
This document will contains the text Hello world

This is the code I use (C# .

Answer 1

This works for me, by putting the streaming code in the outer USING block.

This causes a call to WordprocessingDocument.Close (via the Dispose method).

public void ProcessRequest(HttpContext context)
{
    using (MemoryStream mem = new MemoryStream())
    {
        // Create Document
        using (WordprocessingDocument wordDocument =
            WordprocessingDocument.Create(mem, WordprocessingDocumentType.Document, true))
        {
            // Add a main document part. 
            MainDocumentPart mainPart = wordDocument.AddMainDocumentPart();

            // Create the document structure and add some text.
            mainPart.Document = new Document();
            Body body = mainPart.Document.AppendChild(new Body());
            Paragraph para = body.AppendChild(new Paragraph());
            Run run = para.AppendChild(new Run());
            run.AppendChild(new Text("Hello world!"));
            mainPart.Document.Save();
        }

        context.Response.ContentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
        context.Response.AppendHeader("Content-Disposition", "attachment;filename=HelloWorld.docx");
        mem.Seek(0, SeekOrigin.Begin);
        mem.CopyTo(context.Response.OutputStream);
        context.Response.Flush();
        context.Response.End();
    }
}