Meaning of the various symbols in .aspx page of asp.net
I have come across different symbols in .aspx page of asp.net
<%#eval(expr) %>
<%#bind(expr) %>
<% %> - for specifying the c# code in aspx page
<%$ %> - for specifying the SQL connection string in <asp:SqlDataSource>
Is there any underlying logic behind these symbols or is it just syntax which we have to remember blindly? What does <% %> mean in general?
Answer
It is just syntax.
<% %> is simply short for <script runat="server"> </script> aka code render blocks.
<%# %> are binding expressions (plus the above).
<%= %> is the above + a Response.Write().
<%: %> is the above + a Response.Write() wrapped in Html.Encode (new in .NET 4.0).
<%$ %> is an ASP.NET expression, used to bind configuration or resource file data during runtime.