Insert data in datalist manually.

I want to show data by datalist from database dynamicaly. That is I want to avoid some data.
Clearly I want to show users from data base to make friend. But here it not need to show those users who are already friend with the user.
For this I need to show data dynamicaly.
Here my code:

<asp:DataList ID="DataList1" runat="server" DataSourceID="SqlDataSource1" style="margin-left: 185px"> <ItemTemplate> <table class="auto-style2"> <tr> <td><asp:Label ID="fnameLabel" runat="server" Text='<%# Eval("fname") %>' /> <asp:Label ID="lnameLabel" runat="server" Text='<%# Eval("lname") %>' /></td> <td style="text-align:right"><asp:Button Text="Add as friend" ID="btnAddFriend" CommandArgument='<%# Eval("use ...