How to change the backcolor of a listview subitem using its own value

Question

How can I programmatically change the back color of a single cell in a listview using its own value?

The values in the ColorFlag Column Came from the database.

Here is my code:

foreach(DataRow dr in _dataTbl.Rows) 
        {
            _markOW = dr["Mark"].ToString();
            _stock = dr["Stock"].ToString();
            _SteelSectio = dr["SteelSection"].ToString();
            _colo = (Int32)dr["Color"];


            ListViewItem _lvi = new ListViewItem(_markOW);
            _lvi.SubItems.AddRange(new string[]{_SteelSectio, _stock,     _colo.ToString()});

            _myListView.Items.Add(_lvi);   }

Here is the code that I have tried to change the backcolor of the cells:

for (int _i = 0; _i < _owLV.Items.Count; _i++)
            {
                _myListView.Items[_i].UseItemStyleForSubItems = false;
                _myListView.Items[_i].SubItems[3].BackColor = Color.FromArgb(_colo);
            }

Thanks in advance

Answer 1

As far as I can tell, the code you have looks fine. I just threw together a quick Windows Forms application and tossed a ListView on the form with two columns in detail view. The following code works fine.

var item1 = new ListViewItem( "Item 1");
item1.SubItems.Add( "Color" );
item1.SubItems[1].BackColor = Color.FromArgb( -16711936 );
item1.UseItemStyleForSubItems = false;

listView1.Items.Add( item1 );

I would try setting the BackColor before you add the item. It also looks like you're setting all the items to the same color which is probably not what you want.

Answer 2

Take a look at these links:

C# ListView Detail, Highlight a single cell

Changing color of list view cell using C# (has a working solution)

The key point is to set this:

listView1.Items[0].UseItemStyleForSubItems = false;

Do this:

foreach (DataRow dr in _dataTbl.Rows)
{
    _markOW = dr["Mark"].ToString();
    _stock = dr["Stock"].ToString();
    _SteelSectio = dr["SteelSection"].ToString();
    _color = (Int32)dr["Color"];

    ListViewItem _lvi = new ListViewItem(_markOW);

    _lvi.SubItems.AddRange(new string[] {_SteelSectio, _stock, _color.ToString() });    
    _lvi.UseItemStyleForSubItems = false;
    _lvi.SubItems[2].BackColor = Color.FromArgb(_color);

    _myListView.Items.Add(_lvi);
}