CheckBox checkchanged event not firing correctly

I have a checkbox on my page like so:

<CSControl:ConditionalContent runat="server">
    <ContentConditions><CSControl:UserPropertyValueComparison runat="server" UseAccessingUser="true" ComparisonProperty="IsAnonymous" Operator="IsSetOrTrue" /></ContentConditions>
    <FalseContentTemplate>
        <asp:CheckBox runat="server" ID="UnReadOnlyCheckBox" Checked="<%# UnReadOnly %>" Text="Show unread topics only?" AutoPostBack="true" OnCheckedChanged="UnReadOnlyCheckBox_CheckedChanged" />
    </FalseContentTemplate>
</CSControl:ConditionalContent>

protected void UnReadOnlyCheckBox_CheckedChanged(object sender, EventArgs e)
{
    // do stuff
}

For some reason the event is only fire when the checkbox is checked, it doesn't fire when unchecked. Can anyone shed any light on this, it works fine on a normal asp.net page. I've tried it with viewstate on but still not working

• Post Points: 5 |