how to copy image from gridview selected row ?

I have a gridview in which I am letting the users to select row by select button like this:
<asp:GridView runat="server" ID="GridView1" AutoGenerateColumns="False" CellPadding="4" Font-Names="Tahoma" Font-Size="Small" ForeColor="#333333" GridLines="None" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" DataSourceID="SqlDataSource1" > <Columns> <asp:CommandField ShowSelectButton="True" ButtonType="Button" /> <asp:BoundField DataField="partno" HeaderText="partno" SortExpression="partno" /> <asp:BoundField DataField="description" HeaderText="description" SortExpression="description" /> <asp:BoundField DataField="msrp" HeaderText="msrp" Sor ...