Question

I am getting this error by simply trying to insert some VB.NET code in ASP.NET markup. See the code:

<%@ Control Inherits="PerformanceWeb.Framework.SiteSettings" CodeBehind="sitesettings.ascx.vb" language="vb" AutoEventWireup="false" %>

<table id="TABLE1" cellSpacing="0" cellPadding="2" border="0" runat="server">
<% If EditDowntimeMode Then%>

    <tr><td class="Normal"><asp:label id="lblDowntimeLegacyMode" Runat="server">lblDowntimeLegacyMode</asp:label></td></tr>

    <tr>
        <td class="DowntimeLegacyModeIndented" width="130">
            <asp:label id="lblLegacyMode" Runat="server">lblLegacyMode</asp:label>
        </td>
        <td class="Normal" colSpan="2">
            <asp:RadioButton id="rdoLegacyMode" GroupName="DowntimeLegacyMode" Runat="server"></asp:RadioButton>
        </td>
    </tr>
    <tr>
        <td class="DowntimeLegacyModeIndented" width="130">
            <asp:label id="lblNewCauses" Runat="server">lblNewCauses</asp:label>
        </td>
        <td class="Normal" colSpan="2">
            <asp:RadioButton id="rdoNewCauses" GroupName="DowntimeLegacyMode" Runat="server"></asp:RadioButton>
        </td>
    </tr>

    <tr>
        <td colspan="2"><hr /></td>
    </tr>

<% End if%>
</table>

Codebehind

#Region "Properties"
        Public Property EditDowntimeMode() As Boolean
            Get
                Return m_EditDowntimeMode
            End Get
            Set(ByVal value As Boolean)
                m_EditDowntimeMode = value
            End Set
        End Property

#End Region

Answer 1

When you add a runat='server' to an HTML control you change the rendering and code blocks aren’t supported inside.

Changed from:

<table id="TABLE1" cellSpacing="0" cellPadding="2" border="0" runat="server">

to:

<table id="TABLE1" cellSpacing="0" cellPadding="2" border="0">