c# - Windows phone app running out of memory -

currently view binds data in code behind, in order display pic, 2 subheadings, inside listbox. windows phone runs out of memory when load records. have made app load 10 records @ time, when user scrolls down, 10 more load etc. problem phone still runs out of memory when user loads 200 or more records, , there 2600 records.

  <listbox x:name="geklassifisseerd_list"                           verticalalignment="top"                          itemssource="{binding classifiedads}"                          selectionchanged="geklassifisseerd_list_selectionchanged_1"                          grid.row="1">                     <listbox.itemtemplate>                         <datatemplate>                             <stackpanel margin="5">                                 <image source="{binding imageurl}"                                     height="140"                                    width="160"/>                                  <textblock text="{binding title}"                                         textwrapping="wrap"                                         margin="2"                                         width="160"                                        foreground="black"                                        fontweight="bold"                                        fontsize="15"/>                                  <textblock text="{binding creationdate}"                                         textwrapping="wrap"                                         foreground="black"                                        margin="2,0,0,5"                                         fontsize="13"/>                             </stackpanel>                         </datatemplate>                     </listbox.itemtemplate>                      <itemscontrol.itemspanel>                         <itemspaneltemplate>                             <controls:wrappanel orientation="horizontal"  />                         </itemspaneltemplate>                     </itemscontrol.itemspanel> 

the model :

 public class classifiedads : inotifypropertychanged {     public int id { get; set; }     public string title { get; set; }      private string _body;     public string body     {         { return _body; }         set { _body = htmlhelper.converthtmltotext(value); }     }      public string categoryname { get; set; }     public string contactemail { get; set; }     public string contacttel { get; set; }     public datetime creationdate { get; set; }     public datetime displayuntildate { get; set; }     public gal gallery { get; set; }     public string imageurl { get; set; }     public bool isactive { get; set; }     public bool isdeleted { get; set; }     public datetime lastupdatedate { get; set; }     public string physicaladdress { get; set; }     public string price { get; set; }     public string provincename { get; set; }     public int totalviews { get; set; }      public event propertychangedeventhandler propertychanged;      private void raisepropertychanged(string propertyname)     {         if (this.propertychanged != null)         {             this.propertychanged(this, new propertychangedeventargs(propertyname));         }     } } 

i don't know how else can load data, since records need shown, possible unload previous records user scrolls down? or maybe else try?