asp.net inline code <%# MyboolVal %>

I must be missing something stupid here but I can not see it. My work uses inline code on their sites, for example: ``` <panel runat="server" id="myid" visible='<%# MyboolVal %>'> some stuff </panel> ``` That seems to work great for them, the panel will display when their condition is meet. I am trying to use a similar approach on a site of mine at home (its late friday evening so asking my boss is not the best idea at this point). I can not get it to output anything at all. I have tried it in the visible field which didn't work, so I thought I would just get it to write something to the screen: ``` <p>some text <%# String.Format("meeee {0}", Mybool) %></p> ``` But I do not get any output from the inline code. the "some text" appears but no "meeee" or the bool value. I am doing this inside a user control, at this moment but do not imagine that would be the cause. any ideas please? Thanks EDIT.... OK so thanks to Freddy Rios for the reply I can get the text to appear but when I try that in: ``` Visible='<%= mybool %>' ``` I get the compilation error of: Cannot create an object of type System.boolean from its string representation for the visible property. I am confused as to what exactly is happening. There must be part of the process under the bonnet I don't get. EDIT 2: I get the error on line 123: ``` <fieldset class="myclass" id="projectarea" runat="server" visible='<%= ShowProjectSearchArea %>'> ``` ShowProjectSearchArea is my bool value, set to false. If I double click the error in the Error List window I get the following in a popup, which I have never seen before: ``` Cannot open file '%1'. It might not be in the solution. ```