if you placed datalist command buttons as -

<asp:DataList ID="DataList1" DataKeyField="CommentId" runat="server"
OnItemCommand="DataList1_ItemCommand">
<ItemTemplate>
<asp:LinkButton ID="Edit" Text="Select" CommandName="Edit" runat="server" />
<asp:LinkButton ID="delete" Text="Approve" CommandName="Delete" runat="server" />
.......

It is needed to check whether your website is
available or down.It's better you create a WPF
application to check that.you can also check
status periodically besides checking status on
a button click.the following program shows how
to check the website status by clicking a button -

Nowadays internet is being part of our life.So you need to
be cautious when you browsing internet.Following are some
guidelines to be safe -

normally we define connectionstrings under
<connectionStrings> tag in the web.config
file.membership providers use that
connectionstring.what if we needed to use
the connectionstring in asp.net pages?.

this post will show how to create a file in dotnetnuke module
directory and write some data in the file.you can use this
technique in asp.net application too -