How to send XML file to client in ASP.NET MVC

Question

In an ASP.NET MVC I have a database table. I want to have a button on some view page, if some user clicks that button I my application will generate XML file containing all rows in the database. Then the file containing XML should be sent to the client so that the user will see a download pop-up window.

Similarly I want to allow user to upload an XML file whose content will be added to the database.

What's the simplest way to let the user upload and download file ?

Thanks for all the answers

EDIT: This is my approach:

public FileContentResult Download() {
        if(model.Series.Count() < 1) {
            byte[] content = new byte[0];
            return new FileContentResult(content, "Series");
        }
        XmlSerializer serializer = new XmlSerializer(model.Series.FirstOrDefault().GetType());

        MemoryStream xmlStream = new MemoryStream();
        foreach (Series s in model.Series) {
            serializer.Serialize(xmlStream, s);
        }

        byte[] content2 = new byte[xmlStream.Length];
        xmlStream.Position = 0;
        xmlStream.Read(content2, 0, (int) xmlStream.Length);

        return File(content2, "Series");
}

Where model is DataContext. Howewer this does not work. When I try to download the data I get this error:

XML Parsing Error: junk after document element
Location: http://localhost:1399/Xml/Download
Line Number 7, Column 10:</Series><?xml version="1.0"?>
---------^

Bala R · Accepted Answer · 2010-05-25 14:17:04Z

3

for download part, you could use FileStreamResult

This page has examples for upload and download; check it out.

answered May 25, 2010 at 14:17

Bala R

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Garett · Accepted Answer · 2010-05-25 17:54:36Z

1

An XML document can only have one top level element. After the end of the element, you cannot have anything else. It looks like after the "</Series>" element you have "<?xml version="1.0>", which is invalid.

answered May 25, 2010 at 17:54

Garett

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