Hi,
If you have the image path stored in database then why not trying template columns. Follow this link
http://authors.aspalliance.com/aspxt...odatagrid.aspx
for a good article which solves your problem. If the message you want to display is stored as another column in database you can use the same template column to display your message or create some boundcolumns.
eg. <asp:BoundColumn HeaderText="Price" DataField="ColumnName" />
If you are trying to display the meta information from the image then you can use javascript.
Good Luck,
Sai Puli.