ASP.NET

// Get users windows login username<br />
			// need to set anonymous authentication off in IIS and add the line <identity impersonate="true" /> to web.config<br />
			string strUname = System.Security.Principal.WindowsIdentity.GetCurrent().Name.ToString();<br />
                        //remove the domain name qualifier which is 9 chars for my domain<br />
			strUname = strUname.Substring(9,strUname.Length - 9);<br />
			// boolean variable to hold the result of the group comparison between the users group and the group specified<br />
			Boolean bIsAuthenticated = false;<br />
<br />
			// check against active directory if they are in dashboard group by returning all the groups in a String Collection and looping<br />
			try<br />
			{<br />
				// Create new Authenticate class<br />
				CustomClasses.Authenticate cAuthenticate = new Authenticate();<br />
				// Call method passing in username to return all groups user belongs to<br />
				StringCollection scGroups = (cAuthenticate.GetUserGroupMembership(strUname));<br />
				//loop through colection of strings corresponding to Active Directory groups user is in<br />
				foreach (string gp in scGroups)<br />
				{<br />
					// If the group is = to DASHBOARD then the user is authorised to see the dashboard<br />
					if(gp.Substring(3,gp.Length - 3).ToUpper() == "DASHBOARD")<br />
						// set bIsAuthorsied to true for comparison later<br />
						bIsAuthenticated = true;<br />
					else<br />
						Session.Add("exception", "1");<br />
				}			<br />
			}<br />