Below Solution works fine but it shows folder information i.e. enabled, selected, text & value along with image. i just need file name and image only.
https://www.aspsnippets.com/Articles/Display-Images-from-Folder-in-ASPNet.aspx
<asp:GridView ID="GVFolderImages" runat="server">
<Columns>
<asp:BoundField DataField="Text" />
<asp:ImageField DataImageUrlField="Value" ControlStyle-Height="100" ControlStyle-Width="100" />
</Columns>
</asp:GridView>