attachemnt in gridview

See more:

C#

ASP.NET

hi friends,

am working on asp.net c#, Sqlserver 2005.

I have webform to add user records and attach the files, whatever i have attached it will add in folder(sol explorer) after attaching i will retrieve it and display in gridveiw.

I have a pdf attachments in gridview,
I have added a attachment image in template field, this image will show for all the rows of gridveiw.

This is my attachment.

<asp:TemplateField>
                   &lt;HeaderStyle Width="20px" />
                   <ItemStyle Width="20px" />
                   <ItemTemplate>
                    <asp:HyperLink ID="HyperLink1" Text='<%# Bind("Attachment") %>' NavigateUrl='<%# Bind("Attachment", "AttachmentsTIP_Folder/{0}") %>' runat="server" ToolTip="View Attachment"
                    ImageUrl="~/User/ImagesUser/AttachmentIMG.png" />
                    </ItemTemplate>
                    </asp:TemplateField>

Suppose, if a pdf is not attached, if i click in gridview attachment image, it must display a message, "Sorry No attachment for this record"

can you please help me , how to do this ???

Thanks in advance.