XmlReader IsStartElement in a while loop is repeating the previous line

Question

I have an XML that is structured like this:

<?xml version="1.0" encoding="utf-8"?>
<Report blah blah blah>
  <KeywordPerformanceReportColumns>
    <Column name="GregorianDate" />
    <Column name="AccountId" />
    <Column name="AccountNumber" />
    <Column name="AccountName" />
    <Column name="CampaignId" />
    <Column name="CampaignName" />
    etc....

From this SO post, I learned to use IsStartElement to loop through children of KeywordPerformanceReportColumns. I'm getting the behavior where it loops back to the first Column, never proceeding to the next child.

Code

//use xmlreader to read the memorystream
using (XmlReader reader = XmlReader.Create(memStream))
{
    while (reader.Read())
    {
        reader.ReadStartElement("Report");

        //schema information
        reader.ReadStartElement("KeywordPerformanceReportColumns");

        //columns
        while (reader.IsStartElement("Column"))
        {
            //note interested in whitespace nodes
            bool isWhiteSpace = reader.NodeType == XmlNodeType.Whitespace;

            if (!isWhiteSpace)
            {
                string columnName = reader.GetAttribute("name");
                Console.WriteLine(columnName);
            }
        }

        reader.ReadEndElement( /* "KeywordPerformanceReportColumns" */ );

        reader.ReadEndElement( /* "Report" */ );
    }
}

Screenshot

Answer 1

You are never advancing to the next node inside of your while loop, so

while (reader.IsStartElement("Column"))

is never going to complete if it is entered. You might want something like:

while (reader.Read() && reader.IsStartElement("Column"))

Answer 2

In the example you've linked to and here the ReadToNextSibling method is used

while (reader.ReadToNextSibling("SubEmptyElement"))

and not the IsStartElement

 while (reader.IsStartElement("Column"))