always return null and cause System.NullReferenceException.
But it's fine to run on the old
computer with VS2005. I searched a post http://social.msdn.microsoft.com/Forums/vstudio/en-US/4535fc9d-79af-49b4-b530-c1cfc6e3dec4/visual-studio-2012-with-net-45-doesnt-have-a-state-machine-workflow
It seems the state machine workflow is totally different from VS2005 to VS2012. So does that mean I need to rewrite the workflow part follow the instruction of http://code.msdn.microsoft.com/Windows-Workflow-164557c3?
Or just change the compilation information in web.config from Version=18.104.22.168 to Version=22.214.171.124 or any some simple way to get around it?
And here comes another question. There will be a GUID assigned for each workflow and this information is saved into SQL server database table. I guess the GUID can indicate which state the workflow goes into. Can I still track the state information by the
old GUID if I change the code for VS2012?
If there is any concept error in my expression, please point it out, thanks very much for your