title: enabling/disabling <a> tag through c# code
body: <p>I am trying to enable/disable a "a" tag that's in my html code through my C# back code. I know if it was a button then I would just use, xxx.Visible="false/true" but i guess "a" tag does not have any features for backend code. Here is what I have,</p>
  
  <p>c#:</p>
  
  <pre><code>if (Session["SessionUsersLoginId"] == null)
      { 
  
          alreadyMemberLabel.Visible = true;
          SignInButton.Visible = true;
          forgotdButton.Visible = true;
          passwordLabel.Visible = true;
          passwordTextBox.Visible = true;
          Right here should disable visibility for "login_pop" a tags
      }
  </code></pre>
  
  <p>Html:</p>
  
  <pre><code> &lt;span style="width:32%; float:right;"&gt;
                  &lt;div class="panel"&gt;
              &lt;a href="#login_form" id="login_pop"&gt;Log In&lt;/a&gt;
              &lt;a href= "AddUsers.aspx" id="login_pop"&gt;Sign Up&lt;/a&gt;
           &lt;span style="width:32%; float:right;"&gt;             
              &lt;asp:Button ID="forgotdButton" CssClass="btn-link forgotPass" runat="server" Height="25px" Text="Forgot Password?" 
                                  onclick="forgotdButton_Click" Width="135px" /&gt; 
  
               &lt;/span&gt;
  
          &lt;/div&gt;
  </code></pre>
  
  <p>Maybe there is a way to enable/disable through id?
  Thanks you</p>