c# - Filtering items in a Listview -


i trying filter items in listview using textbox.
i've managed make something, can delete items listview, not bring them back. here little example of code: 

private void textbox1_textchanged(object sender, eventargs e) {     string value = textbox1.text.tolower();     (int = listview1.items.count - 1; -1 < i; i--)     {         if         (listview1.items[i].text.tolower().startswith(value) == false)         {             listview1.items[i].remove();         }     } }

does has idea on how retrieve deleted items? can't seem figure out >:...

check below sample app 

using system; using system.windows.forms; using system.collections.generic; using system.linq; public partial class form1 : form {     // keep list of listview items      list<data> items = new list<data>();      public form1()     {         initializecomponent();         // initial data         items = new list<data>(){             new data(){ id =1, name ="a"},             new data(){ id =2, name ="b"},             new data(){ id =3, name ="c"}         };          // adding initial data         listview1.items.addrange(items.select(c => new listviewitem(c.name)).toarray());     }      private void textbox1_textchanged(object sender, eventargs e)     {         listview1.items.clear(); // clear list items before adding          // filter items match search key , add result list view          listview1.items.addrange(items.where(i=>string.isnullorempty(textbox1.text)||i.name.startswith(textbox1.text))             .select(c => new listviewitem(c.name)).toarray());     }  }  class data {     public int id { get; set; }     public string name { get; set; } }

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