C# CRUD operation for SAP GAteWay

Dear All

Can you help us with codes or information about how to consume Odata service of SAP gateway from Web Application developed in C# . We are able to do read operation (GET) but failed for POST or PUT. I have followed the link http://scn.sap.com/community/gateway/blog/2012/04/26/modifying-request-through-gateway-using-net-c

Though we have tried many times after following the above link's information , we failed for POST/PUT operation because of CSFR Token validation failed . We are also aware about " How to deactivate CSRF token validation" by setting parameter 0 in ~CHECK_CSRF_TOKEN. But we want to do POT/PUT with CSRF validation .

Also want to state that When we can do successfully the POST operation using FireFox REST tool with CSRF token .

Please help us with information or codes for C#

-pk