CODEWITHSUNDEEP
asp.netplaceholder-control
myroman
myroman

Reputation: 591

ASP.Net Placeholder vs if directive

When working with markup if I want to include some content conditionally, I use a placeholder in a normal way:

<asp:Placeholder Visible=<%# IsExpired %>
  <span>Prolong your subscription</span>
</asp:PlaceHolder>

Also I can use if-directive:

<% if(IsExpired) {%>
  <span>Prolong your subscription</span>
<% }%>

I prefer using the first one just because it does not make my markup messy. And what's the best way to conditionally include content? From the performance point of view, are they similar?

Upvotes: 3

Views: 207

Answers (3)

Dmitry Pavlov
Dmitry Pavlov

Reputation: 28290

native HTML tags are always faster than rendering server controls as there is no time spent for rendering them

Upvotes: 2

Stilgar
Stilgar

Reputation: 23551

I'd never use C# code in Web Forms view. In addition I will avoid setting the Visible property in the markup and I will set it in the code behind on some event.

phWhatever.Visible = IsExpired;

Quite often you can avoid creating the IsExpired property.

Of course what @Johnny suggested is correct. If you need to hide what is effectively only one control you hide the control directly.

Upvotes: 1

Johnny
Johnny

Reputation: 491

I think there is hardly anything to do with performance whether way you choose here. But actually you may use the following code:

<asp:Label runat="server" Visible=<%# IsExpired %>
  Prolong your subscription</asp:Label>

instead the other two. This could make it look more straight-forward.

Upvotes: 2

Related Questions