How to put if condition by using visual studio 2012 for project server 2013 worflow

Hi,

 If Project Data:Funding Required equals Yes
    Go to s2- Lead Approval
Else
    Go to End of Workflow

 above condition is used it in sharepoint designer. I want same condition used in visual studio 2012.

Please help me how to get fields of project server in visual studio 2012.

Thanks in Advance in helping us.

Thank you

Vinay