XDocument descendants

<?xml version="1.0" encoding="ISO-8859-1"?> 
<kdd>
<Table>
    <robel ID="1">
        <groof NAME="GOBS-1">
            <sintal ID="A">Cynthia1</sintal>
            <sintal ID="B">Sylvia2</sintal>
            <sintal ID="C">Sylvia3</sintal>
            <sintal ID="D">Sylvia4</sintal>
        </groof>
        <groof NAME="GOBS-2">
            <sintal ID="A">Cynthia1</sintal>
            <sintal ID="B">Cynthia2</sintal>
            <sintal ID="C">Cynthia3</sintal>
            <sintal ID="D">Cynthia4</sintal>
        </groof>
        <groof NAME="GOBS-3">
            <sintal ID="A">Daniella1</sintal>
            <sintal ID="B">Daniella2</sintal>
            <sintal ID="C">Daniella3</sintal>
            <sintal ID="D">Daniella4</sintal>
        </groof>
    </robel>
</Table> 
</kdd>

我想获得GOBS-2的Cynthia1。注意，GOBS-1

中有另一个Cynthia1。

foreach (XElement element in doc.Descendants("groof"))
                {
                    string mmname = element.Attribute("NAME").Value.ToString();
                        if (mmname == "GOBS-2")
                        {
                            bool found = false; 
                            foreach (XElement element1 in doc.Descendants("sintal"))
                            {
                                if (found == false)
                                {
                                    string CurrentValue = (string)element1;
                                    if ("Cynthia1" == CurrentValue)
                                    {
                                        try
                                        {
                                            //do something
                                            found = true;
                                        }
                                        catch (Exception e)
                                        {
                                        }
                                    }
                                }
                            }
                        }

问题是，在它从Gobs-2中找到Cynthia1之后，循环上升到Gobs-1。我认为对于sintal的第二个foreach有问题也许我应该用别的东西。我希望在它找到Gobs-2的sintal后，它停止寻找。看来这两个人并没有什么关系。独立运行

XElement cynthia = doc
    .Descendants("groof")
    .Where(g => g.Attribute("NAME").Value == "GOBS-2")
    .Elements("sintal")
    .Where(s => s.Value == "Cynthia1")  // or Attribute("ID") == "A"
    .Single();

foreach (XElement element in doc.Descendants("groof"))
{
    string mmname = element.Attribute("NAME").Value.ToString();
    if (mmname == "GOBS-2")
    {
        bool found = false; 
        foreach (XElement element1 in element.Descendants("sintal"))
        {
            if (found == false)
            {
                string CurrentValue = (string)element1;
                if ("Cynthia1" == CurrentValue)
                {
                    try
                    {
                        //do something
                        found = true;
                    }
                    catch (Exception e)
                    {
                    }
                }
            }
        }
    }
}