Question

Is it possible to create an integer (or DataTime, etc) column in ListView? It is quite important, because I would like to properly sort the list according to this column.

The only way to add subItems to a ListViewItem I found are:

listviewitem.SubItems.Add('1'); 

I would like to avoid parsing these strings to get the int representation for every sort!

Answer 1

You could use the Tag property. These little helper functions take care of it:

private void setListItem(int row, int column, int value) {   ListViewItem.ListViewSubItem item = listView1.Items[row].SubItems[column];   item.Tag = value;   item.Text = value.ToString(); } private int getListItem(int row, int column) {   return (int)listView1.Items[row].SubItems[column].Tag; }