C# Abstraction for Web Feature Service (WFS) Call

It looks like I found your holy grail!

SharpMap has a WFS implementation.

Code here: https://github.com/SharpMap/SharpMap/blob/master/SharpMap/Data/Providers/WFSClient.cs

Main web page here: https://github.com/SharpMap/SharpMap.

If I were you, I'd use that as much as I could. It'll save you doing all the tedious implementation stuff...

Maybe you also can use Mapsui. It is based on a modified version of SharpMap.

http://mapsui.codeplex.com/