c# - Unable to cast object of type ,Drawing Item -

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how fix problem follow :

when drawitem, message error: "unable cast object of type 'system.collections.generic.list`1[mypro.infodialog+mycontact]' type 'mycontact'."

c# code @ line number:

public class mycontact {         public string p_display_name    { get; set; }         public string p_availability    { get; set; }         public string p_avatar_image    { get; set; } }  mycontact fbcontact;  private void adddatatolist() {     var fblist = new list<mycontact>();     foreach (dynamic item in result.data)     {         fbcontact = new mycontact() { p_display_name = (string)item["name"], p_availability = (string)item["online_presence"]};         fblist.add(fbcontact);         listbox1.items.add(fblist);     } }   private int mouseindex = -1;   private void listbox1_drawitem(object sender, drawitemeventargs e) {      if (e.index == -1) return;      line number:     mycontact contact = (mycontact)listbox1.items[e.index];      brush textbrush = systembrushes.windowtext;         if (e.index > -1)         {             // drawing frame             if (e.index == mouseindex)             {                 e.graphics.fillrectangle(systembrushes.hottrack, e.bounds);                 textbrush = systembrushes.highlighttext;             }             else             {                 if ((e.state & drawitemstate.selected) == drawitemstate.selected)                 {                     e.graphics.fillrectangle(systembrushes.highlight, e.bounds);                     textbrush = systembrushes.highlighttext;                 }else{                     e.graphics.fillrectangle(systembrushes.window, e.bounds);                 }                 // drawing text                 e.graphics.drawstring(contact.p_display_name, e.font, textbrush,    e.bounds.left + 20, e.bounds.top);             }         } }

it seems whole listed added listbox1 instead of single item (listbox1.items.add(fblist))

shouldn't be:

listbox1.items.add(fbcontact);

alternatively, set listbox1.datasource = fblist after loop


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