How to add users from person or group field in a sharepoint list to sharepoint group

Question

Hi,
How to add users(single or multiple) from person or group field in a sharepoint list to sharepoint group programmatically?
Any suggestions would be appreciated.
Thank you,
AA.

Answer 1

Hello,
Use SPGroup.AddUser() method to add user in group. I have just written sample code in notepad so it is not tested:
SPSecurity.RunWithElevatedPrivileges(delegate()
using(SPSite Site = new SPSite(SPContext.Current.Site.Url))
Using(SPWeb Web = Site.OpenWeb())
SPList list = web.Lists["ListName"];
SPQuery query=new SPQuery ();
query.Query = "<Where><Eq><FieldRef Name='Title' /><Value Type='Text'>Test</Value></Eq></Where>";
SPListItemCollection items = list.GetItems(query);
if(items.Count > 0)
foreach(SPListItem item in items)
//Get USers from person or group column
SPFieldUser userField = (SPFieldUser)item.Fields.GetField("Users");
SPFieldUserValueCollection userFieldValueCollection = (SPFieldUserValueCollection)userField.GetFieldValue(item["Users"].ToString());
SPGroup spGroup = spSite.RootWeb.Groups[groupName];//group name
if (users.Count != 0)
bool isUserInGroup = false;
foreach (SPFieldUserValue user in users)
foreach (SPUser item in spGroup.Users)
string itemUserName = item.LoginName;
string UserName = user.User.LoginName;
if (itemUserName == UserName)
isUserInGroup = true;
break;
if (!isUserInGroup)
spGroup.AddUser(user.User);
The above code will query list item and then get users from "Users" column. Now it will check whetehr user is already in group not, if not then add user in group.
http://rajanijilla.blogspot.sg/2012/09/add-users-to-group-programmatically.html
Hope it could help
Hemendra:Yesterday is just a memory,Tomorrow we may never see
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