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    <p>Try using a simple <a href="https://msdn.microsoft.com/en-us/library/system.net.http.httpresponsemessage.aspx" rel="noreferrer"><code>HttpResponseMessage</code></a> with its <code>Content</code> property set to a <a href="https://msdn.microsoft.com/en-us/library/system.net.http.streamcontent.aspx" rel="noreferrer"><code>StreamContent</code></a>:</p> <pre><code>// using System.IO; // using System.Net.Http; // using System.Net.Http.Headers; public HttpResponseMessage Post(string version, string environment, string filetype) { var path = @"C:\Temp\test.exe"; HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK); var stream = new FileStream(path, FileMode.Open, FileAccess.Read); result.Content = new StreamContent(stream); result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream"); return result; } </code></pre> <p>A few things to note about the <code>stream</code> used:</p> <ul> <li><p>You must not call <code>stream.Dispose()</code>, since Web API still needs to be able to access it when it processes the controller method's <code>result</code> to send data back to the client. Therefore, do not use a <code>using (var stream = …)</code> block. Web API will dispose the stream for you.</p></li> <li><p>Make sure that the stream has its current position set to 0 (i.e. the beginning of the stream's data). In the above example, this is a given since you've only just opened the file. However, in other scenarios (such as when you first write some binary data to a <code>MemoryStream</code>), make sure to <code>stream.Seek(0, SeekOrigin.Begin);</code> or set <code>stream.Position = 0;</code></p></li> <li><p>With file streams, explicitly specifying <a href="https://msdn.microsoft.com/en-us/library/system.io.fileaccess.aspx" rel="noreferrer"><code>FileAccess.Read</code></a> permission can help prevent access rights issues on web servers; IIS application pool accounts are often given only read / list / execute access rights to the wwwroot.</p></li> </ul>
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    1. POReturning binary file from controller in ASP.NET Web API
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    1. UScarlosfigueira
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    1. COWould you happen to know when the stream gets closed? I am assuming the framework ultimately calls HttpResponseMessage.Dispose(), which in turn calls HttpResponseMessage.Content.Dispose() effectively closing the stream.
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      1. USSteve Guidi
    2. COSteve - you're correct and I verified by adding a breakpoint to FileStream.Dispose and running this code. The framework calls HttpResponseMessage.Dispose, which calls StreamContent.Dispose, which calls FileStream.Dispose.
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      1. USDan Gartner
    3. COYou can't really add a `using` to either the result (`HttpResponseMessage`) or the stream itself, since they'll still be used outside the method. As @Dan mentioned, they're disposed by the framework after it's done sending the response to the client.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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