C# - Fluent Control Writing Like Telerik - Understanding The Angle Brackets Translation

public class OneControl
{
...
public OneControl Content(Action value) {
ContentProperty = value;
return this;
}
public void Render()
{
ContentProperty();
}
...
}

Then I got this in my view :

<div id="pleaseHelpMe">
<% OneControlInstance.Content(() => { %>
Some Mixed Stuff <%= Example%> Euros
<% }).Render() %>
</div>

I would like to use this syntax in my UI library, I know how to implement this but I don't know HOW it actually works! I understand that somewhere and somewhat a delegate is created and provided as an argument of the method Content, but can't find any information about this mecanism or technic. Assumed current correct answer : The compiler translates the aspx code below into (symbolic translation for comprehension):

<div id="pleaseHelpMe">
<% OneControlInstance.Content(() => {
ViewPageInstance.Response.Write("Some Mixed Stuff ");
ViewPageInstance.Response.Write(Example);
ViewPageInstance.Response.Write(" Euros");
}).Render() %>
</div>