Hi,
My goal is to be able to define a class for the element in a child page. On my master page I have the following:
<body class="<myown:AttributePlaceHolder runat="server" ID="BodyCssClass"/>">
The AttributePlaceHolder derives from ContentPlaceHolder, and just strips out any linebreaks and extra spaces from its content. The problem I will describe also occurs when changing the AttributePlaceHolder into a normal ContentPlaceHolder .
Now the above stated piece of code doesn't work, and will end up in the following error:
Cannot find ContentPlaceHolder 'BodyCssClass' in the master page '/Views/Shared/Site.Master', verify content control's ContentPlaceHolderID attribute in the content page
When changing the above line of code into:
<body class="<% %><myown:AttributePlaceHolder runat="server" ID="BodyCssClass"/>">
It does work (note the added <% %>).
It does the trick, just wondering if I'm missing something here.
Just for the extra info, in my child pages I can write:
<asp:Content ContentPlaceHolderID="BodyCssClass" runat="server">profile-edit someotherclass another-class</asp:Content>
or even:
<asp:Content ContentPlaceHolderID="BodyCssClass" runat="server">profile-edit
someotherclass
another-class
</asp:Content>
and it will be nicely printed out as:
<body class="profile-edit someotherclass another-class">
Edit
As pointed out by Johan the following also works:
<body class='<myown:AttributePlaceHolder runat="server" ID="BodyCssClass"/>'>
Changes the double quotation marks into single ones.
But than my html would also show up with single quotation marks. Call me crazy, but that just hurts me...
I guess it has to do with the ASP.NET parsing engine, in that case should we call it a bug, or a "feature"?