Hope this helps: - Change the DrawMode property of your combo box to OwnerDrawFixed. - Implement the event DrawItem of the combo box and write there something like this:
ToolTip tt = new ToolTip();
private void comboBox1\_DrawItem(object sender, DrawItemEventArgs e) {
e.DrawBackground();
e.Graphics.DrawString(comboBox1.Items\[e.Index\].ToString(),
e.Font, e.State == DrawItemState.Selected ? Brushes.White : Brushes.Black, e.Bounds, StringFormat.GenericDefault);
e.DrawFocusRectangle();
tt.Show(comboBox1.Items\[e.Index\].ToString(), comboBox1, 1000);
}
This event is now called whenever an item is displayed. Now you have to insert the text that draws the combo items and, by the way, you update the tool tip with the information you want to show about the item.
