winforms - how to add multiple comboboxes to the listbox dynamically in C# -

i trying add comboboxes + text list box dynamically in c# has display 2 comboboxes + text, showing text if written

lstboxvideos.item.add(subvideo)  

and showing 1 combobox if written

lstboxvideos.controls.add(subvideo)  

suggest me how problem

foreach(var video in videos)  {     var subvideos = video.descendants("subvideos");     if (subvideos.count() >= 1)      {         combobox subvideo = new combobox();         subvideo.name = "subvideo" + i;         subvideo.items.add(video.attribute("name").value);         foreach(var videoname in subvideos)          {             subvideo.items.add(videoname.value);         }         listboxvideos.items.add(subvideo);         i++;     }      else      {         listboxvideos.items.add(video.attribute("name").value);     } } 

you can add them this:

var cb = new combobox(); var t1 = new textblock(){text = "111"}; var t2 = new textblock(){text = "222"}; var t3 = new textblock(){text = "333"}; cb.items.add(t1); cb.items.add(t2); cb.items.add(t3); yourlistbox.items.add(cb);