Anybody know about adding user to sharepoint group at runtime workflow.

Question

Hi all,

I'm developing an custom activity in sequential workflow.This activity's responsibility is get users (from AD) then add one or more user to sharepoint group on a specified site collection. But at runtime, I'm getting a problem like this. Please, see my code snippet.

try

{

SPGroup spGroup;

web.AllowUnsafeUpdates = true; //site.CatchAccessDeniedException = false;

spGroup = web.SiteGroups[groupName];

spGroup.AddUser(userName, string.Empty, string.Empty, string.Empty);

spGroup.Update();

web.Update();

} catch (Exception ex) { //do something } finally { web.AllowUnsafeUpdates = false; //site.CatchAccessDeniedException = true; }

At firs time

-Run workfow with this activity, see these users added by this code snippet. -Remove manually these users. At second time

-Run this workflow with this activity again, do not see anylonger. -Did IISRESET and everything but still not.

After, I do not run this workflow and wait for it around a quite long time (not remember exactly much but quite long) and run this workflow again and it worked for me.

I think this controlled by some service (Timer job or something). I was wondering why we add by manually, these shown immediately but do this by code, this happen. My code snippet getting problem. So, anybody please help me ?

Thanks in advance. -StandleyNguyen-