Display Uploaded Document From Database

I have a MVC 2 web application. The website captures grant applications for loans. With each application I can upload documents. The way that we upload documents to the database is as follows:

private IEnumerable<byte> GetStreamByteArrayData(Stream stream)
{
byte[] buffer = new byte[8192];
int bytesRead = 0;
while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)
{
for (int byteIndex = 0; byteIndex < bytesRead; byteIndex++)
{
yield return buffer[byteIndex];
}
}
}

The calling method looks like this:

Convert.ToBase64String(GetStreamByteArrayData(hpf.InputStream).ToArray());

In my grid that displays the uploaded documents I have the document name, mime type and so forth. What I am trying to do is to have the name of the document in a link. When the link is clicked then the document is opened. I have no idea how to do this in an MVC app. Can someone provide some sample source code?