Create an int column in ListView (Winforms)

Question

Hi,

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

Hi,

Rather than that you just add strings to the list and receive strings by using .Text property.

Example:

    int a = 0;
    listView1.Items.Add(a.ToString());

or

    int a = Convert.ToInt32(listView1.Items[0].SubItems[0].Text);

You can do this same with DataTime and other datatypes, just by converting them to String type.

How you interpret the column containing i.e dates it fully depends of you. Just implement your algorithm of sorting particular ListView column.

Greets Mariusz

Answer 2

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;
}

Answer 3

Hi,

I think we have a column of type integer like what we have the columns in datagrid, actually i do not have idea about listview control. Let me know if you find the answer.