Handle click on a sub-item of ListView

Question

How can I handle click on a sub-item of ListView (detail mode)? i.e. I need to detect what exactly column was clicked.

Solution 1

You need to determine the column by its position:

private void listView_Click(object sender, EventArgs e)
{
    Point mousePos = listView.PointToClient(Control.MousePosition);
    ListViewHitTestInfo hitTest = listView.HitTest(mousePos);
    int columnIndex = hitTest.Item.SubItems.IndexOf(hitTest.SubItem);
}

Solution 2

This is working well for me:

    private void listView_MouseDown(object sender, MouseEventArgs e)
    {
        var info = listView.HitTest(e.X, e.Y);
        var row = info.Item.Index;
        var col = info.Item.SubItems.IndexOf(info.SubItem);
        var value = info.Item.SubItems[col].Text;
        MessageBox.Show(string.Format("R{0}:C{1} val '{2}'", row, col, value));
    }

Solution 3

You can use the ListView.MouseClick event as follows:

private void listView_MouseClick(object sender, MouseEventArgs e)
{
    // Hittestinfo of the clicked ListView location
    ListViewHitTestInfo listViewHitTestInfo = listView.HitTest(e.X, e.Y);

    // Index of the clicked ListView column
    int columnIndex = listViewHitTestInfo.Item.SubItems.IndexOf(listViewHitTestInfo.SubItem);

    ...
}

Comments

[user1265146]

This wouldn't work on a click event.. but did work on the double click event (.NET 4.5 :)

[Gone Coding]

This also works for MouseUp, MouseDown etc and is cleaner than the accepted answer. +1

[AaA]

This works on click event too, however you cannot place a break point on Control.MousePosition It somehow gets updated with new value when you move your mouse even if visual studio is on top, and you'll be spending hours scratching your head to why I click same point every time and still getting different mousePos

[jw_]

Note: in VS2019 ListView property page the MouseClick event is in "Action" group instead of the "Mouse" group

[asgaut]

I had to enable FullRowSelect on the listview for it to receive Click or MouseClick events when a subitem was clicked.