Question

I have an inline style I want to apply to a partial view based on a parameter passed in to it via the ViewDataDictionary.

My ascx look like this –

<div <% if ((bool)ViewData["Visible"] == false) { %> style="display:none;" <% } %>>
  ...
</div>

Is there a cleaner way to do this?

Edit:
Just to clarify, this is a partial view which is already using strongly typed model. So, I needed a way of passing extra information to the partial view which I couldn’t have in the model because it was actually being called for each entry of a collection container in the model for my containing view.

Answer 1

You could contain it within a conditional operator:

<div <%= !(bool)ViewData["Visible"] ? "style='display:none;'" : "" %>>
  ...
</div>

I’ve not got an MVC project open to test, but the following work in standard ASP.Net. The following will be shown:

<div id="foo" <%= "a" == "b" ? 
    "style='display:none;'" : "" %> />

And this will have the style correctly set:

<div id="foo" <%= "a" == "a" ? 
    "style='display:none;'" : "" %> />