i have developed on grid view in that need to render images..

i have developed some code in that need to render image ..I have these images in my database.i m using code like the below ..
i m getting other column but not getting the image...

asp code.

                                            Style="margin-top: 0px" Width="170px" AutoGenerateColumns="False">
                                           
                                           
                                                                                                    ReadOnly="True" SortExpression="Ticker" />
                                               
                                                   
                                                       
                                                   
                                               
                                           
                                           
                                           
                                       


c# code



System.Data.DataSet ds2 = new System.Data.DataSet();
                string cmText = "SELECT * FROM images WHERE TICKER=" + "'" + ticker + "'";
                SqlDataAdapter da1 = new SqlDataAdapter(cmText, con);
                da1.Fill(ds2);

                GridView1.DataSource = ds2;
                GridView1.DataBind();



Please suggest where i m going mistake...