Problem with ListBox

[Ricardo]

Hello!

I'm having a problem while trying to get the selected Item from a RadListBox...

When i use the RadListBox1.SelectedItem.Value the value is allways null when i use a dictionary as my datasource, but the RadList has 26 rows....However i have other 2 listboxs whose datasource is an entity..i d'ont have any problem....
Here is my code:

public partial class AssignInvoices : Microsoft.Practices.CompositeWeb.Web.UI.Page, IAssignInvoicesView
    {
        private AssignInvoicesPresenter _presenter;

        //implemantaçao da propriedade
        public System.Collections.Generic.IList<Data.Users> Users
        {
            get;
            set;
        }


        public System.Collections.Generic.IList<Data.Priorities> Priorities
        {
            get;
            set;
        }

        public System.Collections.Generic.IList<Data.Staging> Staging
        {
            get;
            set;
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                this._presenter.OnViewInitialized();
            }
            this._presenter.OnViewLoaded();



            Info x = new Info("xx", "xx", "xx,DC=xx,DC=xx");


            Dictionary<string, string> networkUser = new Dictionary<string, string>();
            networkUser = x.GetHierarchyTree("xx");

            Dictionary<string, string> aux = new Dictionary<string, string>();

            foreach (KeyValuePair<string, string> kvp in networkUser)

            {
                //kvp.Key = user de rede
                string userCompName = x.GetUserInfo("cn", kvp.Key);

                aux.Add(kvp.Key, userCompName);//Dictionary com key = user de rede e Value = nomeCompleto Utilizador

            }

            RadListBox1.DataTextField = "Key";
            RadListBox1.DataValueField = "Value";
            RadListBox1.DataSource = aux;
            RadListBox1.DataBind();


            //Page.User.Identity.Name para ir buscar o login user


            //Popular dados na listbox users
            //RadListBox1.DataSource = this.Users;
            //RadListBox1.DataTextField = "UserName";
            //RadListBox1.DataValueField = "UserSap";
            //RadListBox1.DataBind();



            //Popular dados na listbox grupos
            RadListBox2.DataSource = this.Priorities;
            RadListBox2.DataTextField = "Priority";
            RadListBox2.DataValueField = "Priority";
            RadListBox2.DataBind();


            //Popular dados na listbox stagins
            RadListBox3.DataSource = this.Staging;
            RadListBox3.DataTextField = "Process";
            RadListBox3.DataValueField = "Process";
            RadListBox3.DataBind();


        }

        [CreateNew]
        public AssignInvoicesPresenter Presenter
        {
            get
            {
                return this._presenter;
            }
            set
            {
                if (value == null)
                    throw new ArgumentNullException("value");

                this._presenter = value;
                this._presenter.View = this;
            }
        }

        // TODO: Forward events to the presenter and show state to the user.
        // For examples of this, see the View-Presenter (with Application Controller) QuickStart:
        //

        protected void RadButton1_Click(object sender, EventArgs e)
        {
            string _UserValue = RadListBox1.SelectedItem.Value; //Gets the value of item in Users.

            //string _text = RadListBox1.SelectedItem.Text;  //Gets the Text of items in the list.
            List<string> _groups = new List<string>(); //create a list to store selected groups
            string _stg = RadListBox3.SelectedItem.Value; // create a list to store selected stagings


            if (RadListBox1.SelectedIndex > -1 && RadListBox2.SelectedIndex > -1 && RadListBox3.SelectedIndex > -1)
            {

                iConnect.InvoicesScaling.Data.UsersAssignDAO usrAssgnDAO = new iConnect.InvoicesScaling.Data.UsersAssignDAO(new EscalonamentoFacturasEntities());
                UsersAssign user = new UsersAssign();


                foreach (var grp in RadListBox2.SelectedItems)
                {
                    _groups.Add(grp.Value);  //store the selectItems on RadListBox2 to list groups

                    //efectuar aqui o insert

                    user.InserDate = DateTime.Now;
                    int j;
                    Int32.TryParse(grp.Value, out j);
                    user.UserName = _UserValue;
                    user.Priority = j;
                    user.Staging = _stg;

                    //passar o objecto a inserir na tabela da bd
                    usrAssgnDAO.Add(user);

                    usrAssgnDAO.SaveChanges();

                }



            }
            //else if(RadListBox2.SelectedIndex < -1  )
            //reportar erro



        }
    }
}

[Dimitar Terziev]

Hi Ricardo,

The problem that you are experiencing seems to be related to the fact that you bind your listbox upon each post-back and thus clearing the previously selected item. Please note that it's preferable to bind your control only once upon first page load. I've tested the RadListBox with Dictionary as a data source and everything was working as expected.

Kind regards,
Dimitar Terziev
the Telerik team

[Ricardo]

thanks a lot Dimitar..

Can you help me on the topic http://www.telerik.com/community/forums/aspnet-ajax/grid/radgrid-set-column-navigation-property.aspx? I'm a litle bit urgency on that thread :S

[Peter Filipov]

Hi Ricardo,

To avoid inconsistency of the tread, please open a new support ticket regarding RadGrid issue.

Regards,
Peter Filipov
the Telerik team