//Serial port description tooltip
private void cbxPort_DrawItem(object sender, DrawItemEventArgs e)
{
if (e.Index < 0)
{
return;
} // added this line thanks to Andrew's comment
cbxPortEntry item = (cbxPortEntry)cbxPort.Items[e.Index];
e.DrawBackground();
using (SolidBrush br = new SolidBrush(e.ForeColor))
{ e.Graphics.DrawString(item.Name, e.Font, br, e.Bounds); }
if ((e.State & DrawItemState.Selected) == DrawItemState.Selected)
{
toolTip1.Show(item.Description, cbxPort, e.Bounds.Right, e.Bounds.Bottom);
}
e.DrawFocusRectangle();
}
public int CompareTo(object obj)
{
cbxPortEntry cbxObj = (cbxPortEntry)obj;
return(string.Compare(this.Name, cbxObj.Name));
}
