Get value of PeopleEditor control field in a string

Question

How can I retrieve value of SharePoint:PeopleEditor control in a string programmatically in Server Side Object Model (C#)?

Answer 1

Sample ASP control:

<SharePoint:PeopleEditor runat="server" ID="spOwner" />

Sample C# code for update item based on this control:

string[] users= spOwner.CommaSeparatedAccounts.Split(',');
SPFieldUserValueCollection usersSPList = new SPFieldUserValueCollection();
foreach (string user in users)
{
  try
  {
    web.EnsureUser(user);
    SPUser usersSP = web.SiteUsers[user];
    SPFieldUserValue usersSPValue = new SPFieldUserValue(web, usersSP.ID, usersSP.LoginName);
    usersSPList.Add(usersSPValue);
  }
  catch (SPException)
  {
    // your code
  }
}
itemList[fieldOwner.Id] = usersSPList;
itemList.Update();

Answer 2

Considering your control is multi selection allowed. peUser is your SharePoint:PeopleEditor control.

Below code will do the work

           string selectedUser = String.Empty;
           if (peUser.IsValid)
            {
                for (int index = 0; index <= peUser.ResolvedEntities.Count - 1; ++index)
                {
                    PickerEntity entity = (PickerEntity)peUser.ResolvedEntities[index];
                    if (String.IsNullOrEmpty(selectedUser))
                        selectedUser += entity.Key;
                    else
                        selectedUser += ";" + entity.Key;
                }
            }