XPath NodeIterator not able to iterate through results.

Question

I have some XML that is stored in the database and passed in as a string to my method.

    <settings>

      <ReportOptions>

        <ReportWidget>

          <widget Name="Report Exclusions">

            <Visibility>

              <VisibilitySetting Name="ClosedLocations" Value="true"/>

            </Visibility>

          </widget>

          <widget Name="Report Period">

            <Visibility>

              <VisibilitySetting Name="Day" Value="true"/>

              <VisibilitySetting Name="Month" Value="true"/>

            </Visibility>

          </widget>

          <widget Name="Output Method">

            <Properties>

              <Visibility>

                <VisibilitySetting Name="Report Viewer" Value="true"/>

                <VisibilitySetting Name="Pdf" Value="true"/>

              </Visibility>

            </Properties>

          </widget>

        </ReportWidget>

      </ReportOptions>

    </settings>

I run the following expression in an online XPath tester:

    /settings/ReportOptions/ReportWidget/widget[@Name='Output Method']/Properties/Visibility/VisibilitySetting[@Name]

and I get the following results:

    <?xml version="1.0" encoding="UTF-8"?>

    <result>

    <VisibilitySetting Name="Report Viewer" Value="true"/>

    

    <VisibilitySetting Name="Pdf" Value="true"/>

    

    </result>

But when I run the following code:

    var customizationApplied = false;

    var firstProperty = Items[0];

    var settings = firstProperty.Widget.Report.Settings;

    var widgetName = firstProperty.Widget.Name;

    

    // Select the node and place the results in an iterator

    var strExpression =     settings.Compile("/settings/ReportOptions/ReportWidget/widget[@Name='Output Method']/Properties/Visibility/VisibilitySetting[@Name]");

    

    

    var nodeIterator = settings.Select(strExpression);

    // iterate through the results

    while (nodeIterator.MoveNext())

    {

        var xmlPropertyName = nodeIterator.Current.GetAttribute("Name", string.Empty);

        var propertyToCustomize = (from prop in Items

                                   where string.Equals(prop.Name, xmlPropertyName, StringComparison.OrdinalIgnoreCase)

                                   select prop).FirstOrDefault();

        if (propertyToCustomize != null)

        {

            var xmlPropertyValue = nodeIterator.Current.GetAttribute("Value", string.Empty);

            propertyToCustomize.IsEnabled = StringToObjectHelper.GetValue(xmlPropertyValue, false);

            customizationApplied = true;

        } 

    }

I get no results. The nodeIterator always shows this on the mouseover: 

    Position=0, Current={Root}

and when I execute the nodeIterator.MoveNext() method, it returns false.

Can anyone please shed some light on what the problem could be? It all worked before and nothing has been changed.

Thanks,

Lee