How to speed adding items to a ListView?

Question

i\'m adding a few thousand (e.g. 53,709) items to a WinForms ListView.

Attempt 1: 13,870 ms

foreach (Object o in list)
         


        

Answer 1

I have the same problem. Then I found it's sorter make it so slow. Make the sorter as null

this.listViewAbnormalList.ListViewItemSorter = null;

then when click sorter, on ListView_ColumnClick method , make it

 lv.ListViewItemSorter = new ListViewColumnSorter()

At last, after it's been sorted, make the sorter null again

 ((System.Windows.Forms.ListView)sender).Sort();
 lv.ListViewItemSorter = null;