How to use c# code inside <% … %> tags on asp.net page?

Question

I\'m writing an asp.net user control. It has a property, FurtherReadingPage, and two controls bound to it: ObjectDataSource and a Repeater. Inside the Repeater I would like

Answer 1

You have a couple of different tags:

<% executes the code inside:

<% int id = int.Parse(Request["id"]); %> 

<%= writes out the code inside:

<%=id %> 


<% Response.Write(id); %> 

Both of these break up the normal flow when rendered on a page, for instance if you use them in a normal Asp.net you'll get problems.

<%# databinding:

<%# Eval("id") %>

This allows you to specify the bindings for controls that Asp.net WebForms render as a collection (rather than the literal controls that you can use <%= with), for instance:

" />

<%  //without this bind the <%# will be ignored
    void Page_Load( object sender, EventArgs e ) {
        demo.DataBind(); 
        //or
        repeaterWithManyLinks.DataBind(); 
    } 
%>

For your specific case you either:

• Use a repeater and <%# Eval(...) %> with repeater.DataBind();

or

• Use a foreach loop (<% foreach(... %>) with <%= ... %>