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tooltips on list box

/ Published in: C#
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  1. private void OnListBoxMouseMove(object sender, MouseEventArgs e)
  2.     {
  3.       int itemIndex = -1;
  4.  
  5.       if (m_LinksListBox.ItemHeight != 0)
  6.       {
  7.         itemIndex = e.Y / m_LinksListBox.ItemHeight;
  8.         itemIndex += m_LinksListBox.TopIndex;
  9.       }
  10.  
  11.       if ((itemIndex >= 0) && (itemIndex < m_LinksListBox.Items.Count))
  12.       {
  13.         ILink mouseOveredLink = 
  14.           (m_LinksListBox.Items[itemIndex] as LinkListItem).Link;
  15.  
  16.         if (mouseOveredLink != null)
  17.         {
  18.           if (!ListBoxToolTip.GetToolTip(m_LinksListBox).Equals(mouseOveredLink.FileName))
  19.           {
  20.             ListBoxToolTip.SetToolTip(m_LinksListBox, mouseOveredLink.FileName);
  21.           }
  22.           return;
  23.         }
  24.       }
  25.  
  26.       ListBoxToolTip.Hide(m_LinksListBox);
  27.     }

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