Check whether PeopleEditor control contains more than one user

Question

I have a PeopleEditor control with MultiSelect="false" on a workflow initiation form. If enter 2 names, they both resolve... the workflow just truncates it and keeps only the first entity. I want to keep the workflow from starting if there's more than one name. Everything I've tried to get a count of the entities returns 1. How do I find out how many entities the user has entered?

Control:

<SharePoint:PeopleEditor ID="pplPicker" runat="server" AllowEmpty="false" ValidatorEnabled="true" OnValueChangedClientScript="" AllowTypeIn="true" MultiSelect="false" Width="200px"></SharePoint:PeopleEditor>

C#:

SPWeb web = SPContext.Current.Web;

string users = "";
ArrayList arrUsers = this.pplPicker.ResolvedEntities;

foreach (PickerEntity user in arrUsers)
{
    SPUser webUser = web.EnsureUser(user.Key);
    users += webUser.ID.ToString() + ";#" + webUser.Name + ";#";
}

I've tried:

int i = this.pplPicker.ResolvedEntities.Count;

int i = this.pplPicker.Entities.Count;

int i = this.pplPicker.Accounts.Count;

Answer 1

SPUser singleUser = new SPFieldUserValue(item.Web, item["Single User"] as string).User;    
SPUser[] multipleUsers = ((SPFieldUserValueCollection)item["MultipleUsers"]).Cast<SPFieldUserValue>().Select(f => f.User);

I'm not sure why one user is stored as a string, but multiple users are stored as a specific object; it may also not be consistent in this so you might have to debug a bit and see what the type in your field is.

Once you have these SPUsers, you can populate your PeopleEditor control

using the account names as follows (quite long-winded):

ArrayList entityArrayList = new ArrayList();
foreach(SPUser user in multipleUsers) // or just once for a single user
{
    PickerEntity entity = new PickerEntity;
    entity.Key = user.LoginName;
    entity = peMyPeople.ValidateEntity(entity);
    entityArrayList.Add(entity);
}
peMyPeople.UpdateEntities(entityArrayList);

If you want to check any error messages that the control generates for you (if the user input is incorrect), you need to have done this switchout already:

var csa = usrBankSponsor.CommaSeparatedAccounts;
csa = usrOtherBankParties.CommaSeparatedAccounts;
//ErrorMessage is incorrect if you haven't done the above
if (!String.IsNullOrEmpty(usrBankSponsor.ErrorMessage))
{
    ...
}

OR

If you want to get the collection of users from PeopleEditor than please try below code.

//get the collection of users from people editor  

SPFieldUserValueCollection srvcRepCol = new SPFieldUserValueCollection();

int index = 0;

for (index = 0; index <= this.peopleEdControl.ResolvedEntities.Count - 1; ++index)

{

      PickerEntity objEntity = (PickerEntity)this.peopleEdControl.ResolvedEntities[index];

     srvcRepCol.Add(new SPFieldUserValue(srvcWeb, Convert.ToInt32(objEntity.EntityData["SPUserID"]), objEntity.Key));

}        

//Assign the users to list item column

item["Customers"] = srvcRepCol;



//Set the value of  users to people editor

if (item["Customers"] != null))

{  

    string users = string.Empty;

    //To get the value from sharepoint list item and storing it in a  SPFieldUserValueCollection.

    SPFieldUserValueCollection userCol = new SPFieldUserValueCollection(web, item["Customers"].ToString());

    foreach (SPFieldUserValue usrItm in userCol)

    {

        users += usrItm.User.ToString() + ",";

     }



    this.peopleEdControl.CommaSeparatedAccounts = users.Remove(users.LastIndexOf(","), 1);

}