title: can't find variable in <%=%>
body: <p>I added a new web form in asp.net application which named Home. 
  In <code>Home.aspx.cs</code> I used these following codes : </p>
  
  <pre><code>public partial class Home : System.Web.UI.Page
  {
      protected string str = "Hello and welcome to c#";
      protected void Page_Load(object sender, EventArgs e)
      {
  
      }
  }
  </code></pre>
  
  <p>Then I go to <code>Home.aspx</code> but unfortunately It won't find <code>str</code> variable.</p>
  
  <p>These are the codes in <code>Home.aspx</code> :</p>
  
  <pre><code>    &lt;body&gt;
      &lt;form id="form1" runat="server"&gt;
      &lt;div&gt;
      &lt;%=str %&gt;
      &lt;/div&gt;
      &lt;/form&gt;
  </code></pre>